Spin dynamics in LiCu2O2 and NaCu2O2 low-dimensional helical magnets
- Авторы: Sadykov A.F.1, Piskunov Y.V.1, Geraschenko A.P.1,2, Ogloblichev V.V.1, Smol’nikov A.G.1, Arapova I.Y.1, Volkova Z.N.1, Bush A.A.3
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Учреждения:
- Mikheev Institute of Metal Physics, Ural Branch
- Ural Federal University
- Moscow Technological University MIREA
- Выпуск: Том 105, № 11 (2017)
- Страницы: 715-720
- Раздел: Condensed Matter
- URL: https://ogarev-online.ru/0021-3640/article/view/160364
- DOI: https://doi.org/10.1134/S0021364017110091
- ID: 160364
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Аннотация
Comprehensive NMR investigation of low-frequency spin dynamics of LiCu2O2 (LCO) and NaCu2O2 (NCO) low-dimensional helical magnets in the paramagnetic state has been carried out for the first time. Temperature dependences of the spin–lattice relaxation rate and anisotropy on various LCO/NCO nuclei have been determined at various orientations of single crystals in an external magnetic field. The spatial asymmetry of spin fluctuations in LCO multiferroic has been discovered. The quantitative analysis of the anisotropy of spin–lattice relaxation in LCO/NCO has allowed estimating the contributions of individual neighboring Cu2+ ions to the transferred hyperfine field on Li+(Na+) ions.
Об авторах
A. Sadykov
Mikheev Institute of Metal Physics, Ural Branch
Автор, ответственный за переписку.
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
Yu. Piskunov
Mikheev Institute of Metal Physics, Ural Branch
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
A. Geraschenko
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990; Yekaterinburg, 620002
V. Ogloblichev
Mikheev Institute of Metal Physics, Ural Branch
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
A. Smol’nikov
Mikheev Institute of Metal Physics, Ural Branch
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
I. Arapova
Mikheev Institute of Metal Physics, Ural Branch
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
Z. Volkova
Mikheev Institute of Metal Physics, Ural Branch
Email: sadykov@imp.uran.ru
Россия, Yekaterinburg, 620990
A. Bush
Moscow Technological University MIREA
Email: sadykov@imp.uran.ru
Россия, Moscow, 119454
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