Detailed electronic structure of three-dimensional Fermi surface and its sensitivity to charge density wave transition in ZrTe3 revealed by high resolution laser-based angle-resolved photoemission spectroscopy  

作　　者：Shou-Peng Lyu Li Yu Jian-Wei Huang Cheng-Tian Lin Qiang Gao Jing Liu Guo-Dong Liu Lin Zhao Jie Yuan Chuang-Tian Chen Zu-Yan Xu Xing-Jiang Zhou 吕守鹏;俞理;黄建伟;林成天;高强;刘静;刘国东;赵林;袁洁;陈创天;许祖彦;周兴江(National Laboratory for Superconductivity,Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,B eijing 100049,China;Max-Planck-Institut fiir Festkiorperforschung,Heisenbergstrasse 1,70569 Stuttgart,Germany;Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China)

机构地区：[1]National Laboratory for Superconductivity,Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,B eijing 100049,China [3]Max-Planck-Institut fiir Festki~rperforschung,Heisenbergstrasse 1,70569 Stuttgart,Germany [4]Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [5]Collaborative Innovation Center of Quantum Matter,Beijing 100871,China

出　　处：《Chinese Physics B》2018年第8期535-542,共8页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2015CB921301);the National Natural Science Foundation of China(Grant Nos.11574360,11534007,and 11334010);the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(Grant No.XDB07020300)

摘　　要：The detailed information of the electronic structure is the key to understanding the nature of charge density wave （CDW） order and its relationship with superconducting order in the microscopic level. In this paper, we present a high resolution laser-based angle-resolved photoemission spectroscopy （ARPES） study on the three-dimensional （3D） hole-like Fermi surface around the Brillouin zone center in a prototypical quasi-one-dimensional CDW and superconducting system ZrTe3. Double Fermi surface sheets are clearly resolved for the 3D hole-like Fermi surface around the zone center. The 3D Fermi surface shows a pronounced shrinking with increasing temperature. In particular, the quasiparticle scattering rate along the 3D Fermi surface experiences an anomaly near the charge density wave transition temperature of ZrTe3 - 63 K）. The signature of electron-phonon coupling is observed with a dispersion kink at -20 meV; the strength of the electron-phonon coupling around the 3D Fermi surface is rather weak. These results indicate that the 3D Fermi surface is also closely connected to the charge-density-wave transition and suggest a more global impact on the entire electronic structure induced by the CDW phase transition in ZrTe3.The detailed information of the electronic structure is the key to understanding the nature of charge density wave （CDW） order and its relationship with superconducting order in the microscopic level. In this paper, we present a high resolution laser-based angle-resolved photoemission spectroscopy （ARPES） study on the three-dimensional （3D） hole-like Fermi surface around the Brillouin zone center in a prototypical quasi-one-dimensional CDW and superconducting system ZrTe3. Double Fermi surface sheets are clearly resolved for the 3D hole-like Fermi surface around the zone center. The 3D Fermi surface shows a pronounced shrinking with increasing temperature. In particular, the quasiparticle scattering rate along the 3D Fermi surface experiences an anomaly near the charge density wave transition temperature of ZrTe3 - 63 K）. The signature of electron-phonon coupling is observed with a dispersion kink at -20 meV; the strength of the electron-phonon coupling around the 3D Fermi surface is rather weak. These results indicate that the 3D Fermi surface is also closely connected to the charge-density-wave transition and suggest a more global impact on the entire electronic structure induced by the CDW phase transition in ZrTe3.

关 键 词：angle-resolved photoemission spectroscopy ZrTe3  scattering rate electron-phonon coupling 

分 类 号：O4[理学—物理]