Charge Distribution and Hyperfine Interactions in the CuFeO2 Multiferroic According to 63,65Cu NMR Data


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For the first time, the CuFeO2 single crystal has been studied by 63,65Cu nuclear magnetic resonance (NMR). The measurements have been carried out in the temperature range of T = 100−350 K in the magnetic field H = 117 kOe applied along different crystallographic directions. The components of the electric field gradient tensor and the hyperfine coupling constants are determined. It is shown that electrons of copper 4s and 3d orbitals are involved in the spin polarization transfer Fe → Cu. The occupancies of these orbitals are estimated.

作者简介

A. Smol’nikov

Mikheev Institute of Metal Physics, Ural Branch

编辑信件的主要联系方式.
Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

S. Barilo

Institute of Solid State and Semiconductor Physics

Email: smolnikov@imp.uran.ru
白俄罗斯, Minsk, 220072

M. Muflikhonova

Ural Federal University

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620002

A. Yakubovskii

National Research Center Kurchatov Institute

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Moscow, 123182

A. Gerashchenko

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

Yu. Piskunov

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

A. Sadykov

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

K. Mikhalev

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

A. Germov

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

V. Ogloblichev

Mikheev Institute of Metal Physics, Ural Branch

Email: smolnikov@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620108

S. Shiryaev

Institute of Solid State and Semiconductor Physics

Email: smolnikov@imp.uran.ru
白俄罗斯, Minsk, 220072

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