Magnetic transitions on the pseudo-ternary compounds Ho1-xYxRh2Si2

International Conference on Strongly Correlated Electron Systems 2016

Shigeoka, T.^1 ; Fujiwara, T.^1 ; Uwatoko, Y.^2

Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi

753-8512, Japan^1

Institute for Solid State Physics, University of Tokyo, Kashiwa-shi Chiba

277-8581, Japan^2

关键词: Critical composition;    Effective magnetic moments;    Magnetic behaviour;    Magnetic interactions;    Magnetic transitions;    Nonmagnetics;    Ordered state;    Ternary compounds;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/807/4/042005/pdf
DOI  :  10.1088/1742-6596/807/4/042005

来源: IOP

【 摘 要 】

Magnetic measurements on the pseudo-ternary compounds Ho1-xYxRh2Si2, which substitute nonmagnetic Y for Ho, were performed. The lattice parameters a and c are almost constant by the change of Y composition x. The transition temperatures TN1, Tt, and TN2decrease with increasing x. The critical compositions for TN1and TN2are determined to be xn1=0.98 and xN2=0.75, respectively. "The successive component-separated magnetic transitions" appear for the wide x region from x=0 to x=0.75. The partial ordered state, or frustration appears on these compound. The magnetic ordered state persists up to x=0.98 in spite of very dilute Ho-compounds: very weak magnetic interactions. The effective magnetic moments are almost constant from x=0 to 1; μeff=10.6 ±0.15 μB/Ho, and magnetic moment μ=10 μB/Ho as well. The Ho0.95Y0.05Rh2Si2single crystal shows the quite similar magnetic behaviour to that of HoRh2Si2. The constant magnetic moment and constant effective magnetic moment irrespective of x are confirmed from the magnetic behaviours of single crystals Ho1-xYxRh2Si2(x=0.05, 0.6 and 0.8).