Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2

Chen, Xuliang1; Wang, Maoyuan2; Gu, Chuanchuan3,4; Wang, Shuyang1,4; Zhou, Yonghui1; An, Chao5,6; Zhou, Ying1; Zhang, Bowen1,4; Chen, Chunhua1,4; Yuan, Yifang1,4; Qi, Mengyao5,6; Zhang, Lili7,8; Zhou, Haidong9,10; Zhou, Jianhui1; Yao, Yugui2; Yang, Zhaorong1,5,6,11

2019-10-30

10.1103/PhysRevB.100.165145

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

We report a systematic high-pressure study of magnetic topological semimetal Co3Sn2S2 through measurements of synchrotron x-ray diffraction (XRD), magnetization, electrical, and Hall transports combined with first-principle theoretical calculations. No evident trace of structural phase transition is detected through synchrotron x-ray diffraction over the measured pressure range of 0.2-50.9 GPa. We find that the ferromagnetism and the anomalous Hall resistivity are monotonically suppressed as increasing pressure and almost vanish around 22 GPa. The anomalous Hall conductivity varies nonmonotonically against pressure at low temperatures, involving competition between original and emergent Weyl nodes. Combined with first-principle calculations, we reveal that the intrinsic mechanism due to the Berry curvature dominates the anomalous Hall effect under high pressure.

SCI ; EI

英语

其他

[NSF-DMR-1350002]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000493519300001

AMER PHYSICAL SOC

20194607697390

Binary alloys ; Ferromagnetism ; Hall effect ; Synchrotron radiation ; X ray diffraction

Electricity: Basic Concepts and Phenomena:701.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Particle Accelerators:932.1.1

PHYSICS

Web of Science

1.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
2.Beijing Inst Technol, Sch Phys, Beijing Key Lab Nanophoton & Ultrafine Optoelect, Key Lab Adv Optoelect Quantum Architecture & Meas, Beijing 100081, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Univ Sci & Technol China, Sch Phys Sci, Hefei 230026, Anhui, Peoples R China
5.Anhui Univ, Inst Phys Sci, Hefei 230601, Anhui, Peoples R China
6.Anhui Univ, Inst Informat Technol, Hefei 230601, Anhui, Peoples R China
7.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
8.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
9.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
10.Shanghai Jiao Tong Univ, Sch Phys & Astron, Minist Educ, Key Lab Artificial Struct & Quantum Control, Shanghai 200240, Peoples R China
11.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Chen, Xuliang,Wang, Maoyuan,Gu, Chuanchuan,et al. Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2[J]. PHYSICAL REVIEW B,2019,100(16).

Chen, Xuliang.,Wang, Maoyuan.,Gu, Chuanchuan.,Wang, Shuyang.,Zhou, Yonghui.,...&Yang, Zhaorong.(2019).Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2.PHYSICAL REVIEW B,100(16).

Chen, Xuliang,et al."Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2".PHYSICAL REVIEW B 100.16(2019).