NMR studies on EuNi2Si2 with trivalent Eu ion

International Workshop on Itinerant-Electron Magnetism

Koyama, T.^1 ; Ueyama, F.^1 ; Maruyama, T.^1 ; Ueda, K.^1 ; Mito, T.^1 ; Mitsuda, A.^2 ; Wada, H.^2

Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo

678-1297, Japan^1

Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka

819-0395, Japan^2

关键词: Conduction electrons;    Excited levels;    Knight shifts;    NMR studies;    Nuclear spin lattice relaxation rate;    Spin-orbit coupling constants;    Temperature dependence;    Thermally activated;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/868/1/012023/pdf
DOI  :  10.1088/1742-6596/868/1/012023

来源: IOP

【 摘 要 】

We have performed29Si nuclear magnetic resonance experiment to investigate microscopic magnetic properties of EuNi2Si2with trivalent Eu ion. The temperature dependence of the nuclear spin-lattice relaxation rate 1/T1can be explained by considering the two relaxation processes: conduction electrons and the thermally activated spins in the excited levels of J-multiplet. The temperature dependence of the Knight shift could roughly be reproduced with the spin-orbit coupling constant estimated from 1/T1.