Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds
The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in sing...
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| Autor*in: |
Ben Taher, Y. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
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2016transfer abstract |
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| Umfang: |
7 |
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| Übergeordnetes Werk: |
Enthalten in: Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners - Jacobs, Jacquelyn A. ELSEVIER, 2017, JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics, Lausanne |
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| Übergeordnetes Werk: |
volume:668 ; year:2016 ; day:25 ; month:05 ; pages:206-212 ; extent:7 |
| Links: |
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| DOI / URN: |
10.1016/j.jallcom.2016.01.218 |
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| 245 | 1 | 0 | |a Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds |
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| 520 | |a The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. | ||
| 520 | |a The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. | ||
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10.1016/j.jallcom.2016.01.218 doi GBVA2016015000017.pica (DE-627)ELV01956161X (ELSEVIER)S0925-8388(16)30219-5 DE-627 ger DE-627 rakwb eng 670 540 670 DE-600 540 DE-600 630 VZ Ben Taher, Y. verfasserin aut Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds 2016transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. Electrical properties Elsevier CBH model Elsevier X-ray powder Elsevier NSPT model Elsevier Diphosphates Elsevier Oueslati, A. oth Gargouri, M. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:668 year:2016 day:25 month:05 pages:206-212 extent:7 https://doi.org/10.1016/j.jallcom.2016.01.218 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 668 2016 25 0525 206-212 7 045F 670 |
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10.1016/j.jallcom.2016.01.218 doi GBVA2016015000017.pica (DE-627)ELV01956161X (ELSEVIER)S0925-8388(16)30219-5 DE-627 ger DE-627 rakwb eng 670 540 670 DE-600 540 DE-600 630 VZ Ben Taher, Y. verfasserin aut Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds 2016transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. Electrical properties Elsevier CBH model Elsevier X-ray powder Elsevier NSPT model Elsevier Diphosphates Elsevier Oueslati, A. oth Gargouri, M. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:668 year:2016 day:25 month:05 pages:206-212 extent:7 https://doi.org/10.1016/j.jallcom.2016.01.218 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 668 2016 25 0525 206-212 7 045F 670 |
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10.1016/j.jallcom.2016.01.218 doi GBVA2016015000017.pica (DE-627)ELV01956161X (ELSEVIER)S0925-8388(16)30219-5 DE-627 ger DE-627 rakwb eng 670 540 670 DE-600 540 DE-600 630 VZ Ben Taher, Y. verfasserin aut Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds 2016transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. Electrical properties Elsevier CBH model Elsevier X-ray powder Elsevier NSPT model Elsevier Diphosphates Elsevier Oueslati, A. oth Gargouri, M. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:668 year:2016 day:25 month:05 pages:206-212 extent:7 https://doi.org/10.1016/j.jallcom.2016.01.218 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 668 2016 25 0525 206-212 7 045F 670 |
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10.1016/j.jallcom.2016.01.218 doi GBVA2016015000017.pica (DE-627)ELV01956161X (ELSEVIER)S0925-8388(16)30219-5 DE-627 ger DE-627 rakwb eng 670 540 670 DE-600 540 DE-600 630 VZ Ben Taher, Y. verfasserin aut Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds 2016transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. Electrical properties Elsevier CBH model Elsevier X-ray powder Elsevier NSPT model Elsevier Diphosphates Elsevier Oueslati, A. oth Gargouri, M. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:668 year:2016 day:25 month:05 pages:206-212 extent:7 https://doi.org/10.1016/j.jallcom.2016.01.218 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 668 2016 25 0525 206-212 7 045F 670 |
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10.1016/j.jallcom.2016.01.218 doi GBVA2016015000017.pica (DE-627)ELV01956161X (ELSEVIER)S0925-8388(16)30219-5 DE-627 ger DE-627 rakwb eng 670 540 670 DE-600 540 DE-600 630 VZ Ben Taher, Y. verfasserin aut Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds 2016transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. Electrical properties Elsevier CBH model Elsevier X-ray powder Elsevier NSPT model Elsevier Diphosphates Elsevier Oueslati, A. oth Gargouri, M. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:668 year:2016 day:25 month:05 pages:206-212 extent:7 https://doi.org/10.1016/j.jallcom.2016.01.218 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 668 2016 25 0525 206-212 7 045F 670 |
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alternative current conduction mechanisms and effect of ag substitution on conductivity in na1−xagxalp2o7 (x = 0.4, x = 0.6 and x = 0.8) compounds |
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Alternative current conduction mechanisms and effect of Ag substitution on conductivity in Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) compounds |
| abstract |
The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. |
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The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. |
| abstract_unstemmed |
The Na1−xAgxAlP2O7 (x = 0.4, x = 0.6 and x = 0.8) samples were prepared by solid–state reaction technique at high temperature. The structural and electrical transport properties have been investigated. The x-ray powder diffraction patterns at room temperature show that all samples are formed in single phase and crystallize in the monoclinic system with P21/C space group. The electrical technique was measured in the 200 Hz–5 MHz frequency range and 573–673 K temperature intervals. The impedance plot has shown semicircle arcs at different temperatures and in order to explain the impedance results, an electrical equivalent circuit has been proposed. The maximum value of conductivity achieved for this material is 3.47 × 10−6 (Ω cm) −1 for x = 0.4, 3.12 × 10−5 (Ω cm) −1 for x = 0.6 and 1.64 × 10−5 (Ω cm) −1 for x = 0.8. The conductivity increases with increase in Ag substitution. The frequency dependence of alternative current (AC) conductivity is interpreted in terms of Jonscher's law. The AC conductivity is analyzed by different processes, which can be attributed to several models: the non-overlapping small polaron tunneling model (NSPT) for x = 0.4 and x = 0.6, the correlated barrier hopping (CBH) for x = 0.8. The conduction mechanism is studied with the help of Elliot's theory, and the Elliot's parameters are determined. |
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