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論文

Devil's staircase transition of the electronic structures in CeSb

黒田 健太*; 新井 陽介*; Rezaei, N.*; 國定 聡*; 櫻木 俊輔*; Alaei, M.*; 木下 雄斗*; Bareille, C.*; 野口 亮*; 中山 充大*; et al.

Nature Communications (Internet), 11, p.2888_1 - 2888_9, 2020/06

 被引用回数:14 パーセンタイル:74.84(Multidisciplinary Sciences)

Solids with competing interactions often undergo complex phase transitions. Among them, CeSb is the most famous material where a number of the distinct magnetic phases called devil's staircase appear. We observed the electronic structure evolution across the devil's staircase transitions using bulk-sensitive angle-resolved photoemission spectroscopy.

論文

Experimental determination of the topological phase diagram in Cerium monopnictides

黒田 健太*; 越智 正之*; 鈴木 博之*; 平山 元昭*; 中山 充大*; 野口 亮*; Bareille, C.*; 明比 俊太朗*; 國定 聡*; 室 隆桂之*; et al.

Physical Review Letters, 120(8), p.086402_1 - 086402_6, 2018/02

 被引用回数:42 パーセンタイル:92.13(Physics, Multidisciplinary)

We use bulk-sensitive soft X-ray angle-resolved photoemission spectroscopy and investigate bulk electronic structures of Ce monopnictides (CeX; X=P, As, Sb and Bi). By exploiting a paradigmatic study of the band structures as a function of their spin-orbit coupling (SOC), we draw the topological phase diagram of CeX and unambiguously reveal the topological phase transition from a trivial to a nontrivial regime in going from CeP to CeBi induced by the band inversion.

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