Na order and Co charge disproportionation in Na x CoO2
We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Mukhamedshin, I.R. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques - Bredács, M. ELSEVIER, 2023, Amsterdam |
|---|---|
| Übergeordnetes Werk: |
volume:460 ; year:2015 ; day:1 ; month:03 ; pages:58-63 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.physb.2014.11.040 |
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| 520 | |a We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. | ||
| 520 | |a We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. | ||
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10.1016/j.physb.2014.11.040 doi GBV00000000000240A.pica (DE-627)ELV029103460 (ELSEVIER)S0921-4526(14)00874-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 540 VZ 51.30 bkl Mukhamedshin, I.R. verfasserin aut Na order and Co charge disproportionation in Na x CoO2 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. 7127.+a Elsevier 7660.−k Elsevier Alloul, H. oth Enthalten in Elsevier Bredács, M. ELSEVIER Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques 2023 Amsterdam (DE-627)ELV010517057 volume:460 year:2015 day:1 month:03 pages:58-63 extent:6 https://doi.org/10.1016/j.physb.2014.11.040 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_203 GBV_ILN_227 GBV_ILN_2010 51.30 Werkstoffprüfung Werkstoffuntersuchung VZ AR 460 2015 1 0301 58-63 6 045F 530 |
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10.1016/j.physb.2014.11.040 doi GBV00000000000240A.pica (DE-627)ELV029103460 (ELSEVIER)S0921-4526(14)00874-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 540 VZ 51.30 bkl Mukhamedshin, I.R. verfasserin aut Na order and Co charge disproportionation in Na x CoO2 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. 7127.+a Elsevier 7660.−k Elsevier Alloul, H. oth Enthalten in Elsevier Bredács, M. ELSEVIER Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques 2023 Amsterdam (DE-627)ELV010517057 volume:460 year:2015 day:1 month:03 pages:58-63 extent:6 https://doi.org/10.1016/j.physb.2014.11.040 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_203 GBV_ILN_227 GBV_ILN_2010 51.30 Werkstoffprüfung Werkstoffuntersuchung VZ AR 460 2015 1 0301 58-63 6 045F 530 |
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10.1016/j.physb.2014.11.040 doi GBV00000000000240A.pica (DE-627)ELV029103460 (ELSEVIER)S0921-4526(14)00874-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 540 VZ 51.30 bkl Mukhamedshin, I.R. verfasserin aut Na order and Co charge disproportionation in Na x CoO2 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. 7127.+a Elsevier 7660.−k Elsevier Alloul, H. oth Enthalten in Elsevier Bredács, M. ELSEVIER Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques 2023 Amsterdam (DE-627)ELV010517057 volume:460 year:2015 day:1 month:03 pages:58-63 extent:6 https://doi.org/10.1016/j.physb.2014.11.040 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_203 GBV_ILN_227 GBV_ILN_2010 51.30 Werkstoffprüfung Werkstoffuntersuchung VZ AR 460 2015 1 0301 58-63 6 045F 530 |
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10.1016/j.physb.2014.11.040 doi GBV00000000000240A.pica (DE-627)ELV029103460 (ELSEVIER)S0921-4526(14)00874-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 540 VZ 51.30 bkl Mukhamedshin, I.R. verfasserin aut Na order and Co charge disproportionation in Na x CoO2 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. 7127.+a Elsevier 7660.−k Elsevier Alloul, H. oth Enthalten in Elsevier Bredács, M. ELSEVIER Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques 2023 Amsterdam (DE-627)ELV010517057 volume:460 year:2015 day:1 month:03 pages:58-63 extent:6 https://doi.org/10.1016/j.physb.2014.11.040 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_203 GBV_ILN_227 GBV_ILN_2010 51.30 Werkstoffprüfung Werkstoffuntersuchung VZ AR 460 2015 1 0301 58-63 6 045F 530 |
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10.1016/j.physb.2014.11.040 doi GBV00000000000240A.pica (DE-627)ELV029103460 (ELSEVIER)S0921-4526(14)00874-6 DE-627 ger DE-627 rakwb eng 530 530 DE-600 540 VZ 51.30 bkl Mukhamedshin, I.R. verfasserin aut Na order and Co charge disproportionation in Na x CoO2 2015transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. 7127.+a Elsevier 7660.−k Elsevier Alloul, H. oth Enthalten in Elsevier Bredács, M. ELSEVIER Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques 2023 Amsterdam (DE-627)ELV010517057 volume:460 year:2015 day:1 month:03 pages:58-63 extent:6 https://doi.org/10.1016/j.physb.2014.11.040 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_203 GBV_ILN_227 GBV_ILN_2010 51.30 Werkstoffprüfung Werkstoffuntersuchung VZ AR 460 2015 1 0301 58-63 6 045F 530 |
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530 530 DE-600 540 VZ 51.30 bkl Na order and Co charge disproportionation in Na x CoO2 7127.+a Elsevier 7660.−k Elsevier |
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Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques |
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Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques |
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Na order and Co charge disproportionation in Na x CoO2 |
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Na order and Co charge disproportionation in Na x CoO2 |
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Mukhamedshin, I.R. |
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Towards circular plastics: Density and MFR prediction of PE with IR spectroscopic techniques |
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10.1016/j.physb.2014.11.040 |
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na order and co charge disproportionation in na x coo2 |
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Na order and Co charge disproportionation in Na x CoO2 |
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We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. |
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We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. |
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We have synthesized and characterized different stable phases of sodium cobaltates Na x CoO2 with sodium content 0.65 < x < 0.80 . We demonstrate that 23Na NMR allows us to determine the difference in the susceptibility of the phases and reveals the presence of Na order in each phase. 59Co NMR experiments give clear evidence that Co charge disproportionation is a dominant feature of Na cobaltates. Only a small fraction (≈25%) of cobalt are in a non-magnetic Co3+ charge state whereas electrons delocalize on the other cobalt. The magnetic and charge properties of the different Co sites are highly correlated with each other as their magnetic shift K ZZ scales linearly with their quadrupolar frequency ν Q . This reflects the fact that the hole content on the Co orbitals varies from site to site. The unusual charge differentiation found in this system calls for better theoretical understanding of the incidence of the Na atomic order on the electronic structures of these compounds. |
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Na order and Co charge disproportionation in Na x CoO2 |
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