Robust magnetism and crystal structure in Dirac semimetal EuMnBi2 under high pressure

被引：3

作者：

Jose, Greeshma C. ^{[1
]}

Xie, Weiwei ^{[2
]}

Lavina, Barbara ^{[3
,4
]}

Zhao, Jiyong ^{[3
]}

Alp, Esen E. ^{[3
]}

Zhang, Dongzhou ^{[5
]}

Bi, Wenli ^{[1
]}

机构：

[1] Univ Alabama Birmingham, Dept Phys, Birmingham, AL 35294 USA

[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[4] Univ Chicago, Ctr Adv Radiat Sources, Chicago, IL 60637 USA

[5] Univ Hawaii Manoa, Hawaii Inst Geophys & Planetol, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2024年 / 36卷 / 25期

基金：

美国国家科学基金会;

关键词：

Dirac semimetal; high pressure; crystal structure; magnetism; SCATTERING;

D O I：

10.1088/1361-648X/ad3473

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Dirac materials offer exciting opportunities to explore low-energy carrier dynamics and novel physical phenomena, especially their interaction with magnetism. In this context, this work focuses on studies of pressure control on the magnetic state of EuMnBi2, a representative magnetic Dirac semimetal, through time-domain synchrotron Mossbauer spectroscopy in 151Eu. Contrary to the previous report that the antiferromagnetic order is suppressed by pressure above 4 GPa, we have observed robust magnetic order up to 33.1 GPa. Synchrotron-based x-ray diffraction experiment on a pure EuMnBi2 sample shows that the tetragonal crystal lattice remains stable up to at least 31.7 GPa.

引用

页数：8

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