FEATURES OF THE ELECTRONIC STATE OF COPPER IONS OF CuBO2 (B = Al, Cr, Fe) COMPOUNDS WITH THE DELAFOSSITE STRUCTURE
- Autores: Smolnikov A.G.1, Ogloblichev V.V2, Piskunov Y.V.1, Sadykov A.F.1
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Afiliações:
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
- M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences
- Edição: Volume 126, Nº 8 (2025)
- Páginas: 857-864
- Seção: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
- URL: https://medbiosci.ru/0015-3230/article/view/303490
- DOI: https://doi.org/10.7868/S3034621525080025
- ID: 303490
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Resumo
Nuclear quadrupole resonance (NQR) spectra of 63,65Cu were measured in CuCrO2 and CuAlO2 samples over a wide temperature range (30–380 K). The spectra consist of two Gaussian-shaped lines with a width at half the height of Δ63ν = 30 kHz for CuCrO2 and Δ63ν = 55 kHz for CuAlO2. The frequency of resonance 63,65νQ (T) increases with decreasing temperature and reaches a plateau at Al νQ = 28.29 MHz and Cr 63νQ = 27.11 MHz below 100 K. Analysis of NMR, NQR and structural data of isostructural compounds CuBO2 (B = Al, Cr, Fe) allows us to reasonably assume the presence of hybridized 3dz2-r2 – 4s-orbitals in Cu+ ions.
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Sobre autores
Aleksey Smolnikov
M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: smolnikov@imp.uran.ru
ORCID ID: 0000-0001-6295-9530
Código SPIN: 1684-9267
Researcher ID: J-9285-2013
Rússia, Yekaterinburg, 620108
Vasiliy Ogloblichev
M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences
Email: ogloblichev@imp.uran.ru
ORCID ID: 0000-0003-0520-7521
Researcher ID: K-3399-2013
Rússia, Yekaterinburg, 620108
Yuriy Piskunov
M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
Email: piskunov@imp.uran.ru
ORCID ID: 0000-0002-6115-6207
Researcher ID: J-7799-2013
Rússia, Yekaterinburg, 620108
Almaz Sadykov
M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
Email: Sadykov@imp.uran.ru
ORCID ID: 0000-0003-1742-278X
Código SPIN: 4628-1634
Researcher ID: J-3528-2013
Rússia, Yekaterinburg, 620108
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