Broken C4 symmetry in the tetragonal state of uniaxial strained BaCo0.9Ni0.1 S1.9

Shin Ichi Shamoto, Hiroki Yamauchi, Kazuhiko Ikeuchi, Ryoichi Kajimoto, Jun'Ichi Ieda

研究成果: Article同行評審

摘要

A compound with large anions is known to show large compressibility, whereby a novel response may emerge from the degenerated state by a uniaxial pressure. Neutron scattering study of BaCo0.9Ni0.1S1.9 crystal reveals that the tetragonal insulating state has two magnetic domains with in-plane anisotropic antiferromagnetic wave vectors Q1=(π,0) and Q2=(0,π). The magnetic order with in-plane broken C4 symmetry is realized as a twin of these two domains in the tetragonal state without any strain. One magnetic domain with Q2 becomes dominant under a weak strain without any appreciable structural distortion. Correspondingly, the in-plane broken C4 symmetry is also observed in the in-plane magnetic excitation of the tetragonal state.

原文English
文章編號013169
期刊Physical Review Research
3
發行號1
DOIs
出版狀態Published - 2021 二月 22

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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