Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems
Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050,...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Nitika [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration - Rey, F. ELSEVIER, 2018, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:47 ; year:2021 ; number:14 ; day:15 ; month:07 ; pages:20669-20677 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.ceramint.2021.04.077 |
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ELV054417716 |
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| 245 | 1 | 0 | |a Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems |
| 264 | 1 | |c 2021transfer abstract | |
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| 520 | |a Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. | ||
| 520 | |a Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. | ||
| 650 | 7 | |a Magnetic properties (C) |2 Elsevier | |
| 650 | 7 | |a 5G wireless communication system |2 Elsevier | |
| 650 | 7 | |a Dielectric properties (C) |2 Elsevier | |
| 650 | 7 | |a Spinel ferrites (D) |2 Elsevier | |
| 700 | 1 | |a Rana, Anu |4 oth | |
| 700 | 1 | |a Kumar, Vinod |4 oth | |
| 700 | 1 | |a Awasthi, A.M. |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Rey, F. ELSEVIER |t Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration |d 2018 |g Amsterdam [u.a.] |w (DE-627)ELV000899798 |
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10.1016/j.ceramint.2021.04.077 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001423.pica (DE-627)ELV054417716 (ELSEVIER)S0272-8842(21)01121-4 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Nitika verfasserin aut Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems 2021transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Magnetic properties (C) Elsevier 5G wireless communication system Elsevier Dielectric properties (C) Elsevier Spinel ferrites (D) Elsevier Rana, Anu oth Kumar, Vinod oth Awasthi, A.M. oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:14 day:15 month:07 pages:20669-20677 extent:9 https://doi.org/10.1016/j.ceramint.2021.04.077 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 14 15 0715 20669-20677 9 |
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10.1016/j.ceramint.2021.04.077 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001423.pica (DE-627)ELV054417716 (ELSEVIER)S0272-8842(21)01121-4 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Nitika verfasserin aut Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems 2021transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Magnetic properties (C) Elsevier 5G wireless communication system Elsevier Dielectric properties (C) Elsevier Spinel ferrites (D) Elsevier Rana, Anu oth Kumar, Vinod oth Awasthi, A.M. oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:14 day:15 month:07 pages:20669-20677 extent:9 https://doi.org/10.1016/j.ceramint.2021.04.077 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 14 15 0715 20669-20677 9 |
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10.1016/j.ceramint.2021.04.077 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001423.pica (DE-627)ELV054417716 (ELSEVIER)S0272-8842(21)01121-4 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Nitika verfasserin aut Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems 2021transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Magnetic properties (C) Elsevier 5G wireless communication system Elsevier Dielectric properties (C) Elsevier Spinel ferrites (D) Elsevier Rana, Anu oth Kumar, Vinod oth Awasthi, A.M. oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:14 day:15 month:07 pages:20669-20677 extent:9 https://doi.org/10.1016/j.ceramint.2021.04.077 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 14 15 0715 20669-20677 9 |
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10.1016/j.ceramint.2021.04.077 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001423.pica (DE-627)ELV054417716 (ELSEVIER)S0272-8842(21)01121-4 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Nitika verfasserin aut Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems 2021transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Magnetic properties (C) Elsevier 5G wireless communication system Elsevier Dielectric properties (C) Elsevier Spinel ferrites (D) Elsevier Rana, Anu oth Kumar, Vinod oth Awasthi, A.M. oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:14 day:15 month:07 pages:20669-20677 extent:9 https://doi.org/10.1016/j.ceramint.2021.04.077 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 14 15 0715 20669-20677 9 |
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10.1016/j.ceramint.2021.04.077 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001423.pica (DE-627)ELV054417716 (ELSEVIER)S0272-8842(21)01121-4 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Nitika verfasserin aut Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems 2021transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. Magnetic properties (C) Elsevier 5G wireless communication system Elsevier Dielectric properties (C) Elsevier Spinel ferrites (D) Elsevier Rana, Anu oth Kumar, Vinod oth Awasthi, A.M. oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:14 day:15 month:07 pages:20669-20677 extent:9 https://doi.org/10.1016/j.ceramint.2021.04.077 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 14 15 0715 20669-20677 9 |
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effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted cofe2o4 nanoparticles for potential use in 5g wireless communication systems |
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Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems |
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Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. |
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Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. |
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Dielectric-magnetic nanoparticles are the key component used in high-frequency devices employed in the 5G telecommunication system. Lanthanum-doped cobalt ferrites have shown remarkable properties to improve the functioning of the wireless system. In this context, CoLaXFe2-XO4 (x = 0, 0.025, 0.050, 0.075, 0.1) ferrite nanoparticles are synthesized using chemical coprecipitation technique. X-ray diffraction confirms cubic spinel structure with average crystallite size ranging from 17 to 42 nm. Fourier transform infrared spectra exhibit a characteristic band at ~575 cm-1 illustrating the formation of the ferrite phase. Magnetic properties show a non-linear variation with La3+ ions content as well as annealing temperature attributed to the complex inclusion mechanism involved in the substitution of Fe3+ ions by rare-earth ions. The formation of secondary phases at high annealing temperature had a significant effect on magnetic and dielectric properties. Saturation magnetization ranges from 21.6emu/g to 49.6emu/g and shows an increasing trend with annealing. The Nyquist plots indicate the dominant effect of grain boundaries in the conduction process. The La-doped annealed ferromagnetic ferrites possess a good crystalline structure with enhanced dielectric constant, high anisotropy constant, moderate saturation magnetization, and high Q-factor which makes them a superior choice in 5G wireless communication system. |
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Effect of dopant concentration and annealing temperature on electric and magnetic properties of lanthanum substituted CoFe2O4 nanoparticles for potential use in 5G wireless communication systems |
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