Pressure-induced Lifshitz transition in FeSe0.88S0.12 probed via 77Se-NMR

被引：0

作者：

Kuwayama, T. ^{[1
]}

Matsuura, K. ^{[2
]}

Mizukami, Y. ^{[2
]}

Kasahara, S. ^{[3
]}

Matsuda, Y. ^{[3
]}

Shibauchi, T. ^{[2
]}

Uwatoko, Y. ^{[4
]}

Fujiwara, N. ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

[2] Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba 2778581, Japan

[3] Grad Sch Sci, Div Phys & Astron, Kyoto, Kyoto 6068502, Japan

[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PAPERS IN PHYSICS | 2019年 / 11卷

关键词：

D O I：

10.4279/PIP.110003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recently, FeSe1-xSx systems have received much attention because of the unique pressure- temperature phase diagram. We performed Se-77-NMR measurements on a single crystal of FeSe0.88S0.12 to investigate its microscopic properties. The shift of Se-77 spectra exhibits anomalous enhancement at 1.0 GPa, suggesting a topological change in the Fermi surfaces, the so-called Lifshitz transition, occurs at 1.0 GPa. The magnetic fluctuation simultaneously changes its properties, which implies a change in the dominant nesting vector.

引用

页数：4

共 14 条

[1] 77Se-NMR Study under Pressure on 12%-S Doped FeSe
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JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2019, 88 (03)
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