Pressure tuning of the anomalous Hall effect in the kagome superconductor CsV3Sb5 |
| |
Authors: | Fang-Hang Yu Xi-Kai Wen Zhi-Gang Gui Tao Wu Zhenyu Wang Zi-Ji Xiang Jianjun Ying Xianhui Chen |
| |
Institution: | 1.Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China;2.CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei 230026, China;3.Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China |
| |
Abstract: | Controlling the anomalous Hall effect (AHE) inspires potential applications of quantum materials in the next generation of electronics. The recently discovered quasi-2D kagome superconductor CsV3Sb5 exhibits large AHE accompanying with the charge-density-wave (CDW) order which provides us an ideal platform to study the interplay among nontrivial band topology, CDW, and unconventional superconductivity. Here, we systematically investigated the pressure effect of the AHE in CsV3Sb5. Our high-pressure transport measurements confirm the concurrence of AHE and CDW in the compressed CsV3Sb5. Remarkably, distinct from the negative AHE at ambient pressure, a positive anomalous Hall resistivity sets in below 35 K with pressure around 0.75 GPa, which can be attributed to the Fermi surface reconstruction and/or Fermi energy shift in the new CDW phase under pressure. Our work indicates that the anomalous Hall effect in CsV3Sb5 is tunable and highly related to the band structure. |
| |
Keywords: | anomalous Hall effect (AHE) charge-density-wave (CDW) kagome superconductor pressure effect |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|