Twofold symmetry of c-axis resistivity in topological kagome superconductor CsV3Sb5 with in-plane rotating magnetic field.
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TLDR
In this article, the anisotropic in-plane electronic state and superconductivity in a recently discovered kagome metal CsV3Sb5 by measuring c-axis resistivity with the inplane rotation of magnetic field were investigated.Abstract:
In transition metal compounds, due to the interplay of charge, spin, lattice and orbital degrees of freedom, many intertwined orders exist with close energies. One of the commonly observed states is the so-called nematic electron state, which breaks the in-plane rotational symmetry. This nematic state appears in cuprates, iron-based superconductor, etc. Nematicity may coexist, affect, cooperate or compete with other orders. Here we show the anisotropic in-plane electronic state and superconductivity in a recently discovered kagome metal CsV3Sb5 by measuring c-axis resistivity with the in-plane rotation of magnetic field. We observe a twofold symmetry of superconductivity in the superconducting state and a unique in-plane nematic electronic state in normal state when rotating the in-plane magnetic field. Interestingly these two orders are orthogonal to each other in terms of the field direction of the minimum resistivity. Our results shed new light in understanding non-trivial physical properties of CsV3Sb5.read more
Citations
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Cascade of correlated electron states in the kagome superconductor CsV3Sb5.
He Zhao,Hong Li,Brenden R. Ortiz,Samuel M. L. Teicher,Takamori Park,Mengxing Ye,Ziqiang Wang,Leon Balents,Leon Balents,Stephen D. Wilson,Ilija Zeljkovic +10 more
TL;DR: In this paper, a temperature-dependent cascade of different symmetry-broken electronic states in a new kagome superconductor, CsV3Sb5, was discovered using spectroscopic imaging scanning tunnelling microscopy.
Journal ArticleDOI
Charge-density-wave-driven electronic nematicity in a kagome superconductor
L. P. Nie,Kuanglv Sun,Wanru Ma,D. Song,Lixuan Zheng,Z. Liang,P. Wu,Fanghang Yu,Jian Li,Min Shan,D. Zhao,Shunjiao Li,B. L. Kang,Yanli Zhou,Kai Liu,Ziji Xiang,J. J. Ying,Zhenyu Wang,Tao Wu,Xianhui Chen +19 more
Journal ArticleDOI
Twofold van Hove singularity and origin of charge order in topological kagome superconductor CsV3Sb5
Mingu Kang,Shiang Fang,Jeong-Kyu Kim,Brenden R. Ortiz,Sae Hee Ryu,Jimin Kim,J. Yoo,Giorgio Sangiovanni,Domenico Di Sante,Byeong-Gyu Park,Chris Jozwiak,Aaron Bostwick,Eli Rotenberg,Efthimios Kaxiras,S J Wilson,Jae Hoon Park,Riccardo Comin +16 more
TL;DR: In this paper , angle-resolved photoemission spectroscopy and density functional theory are combined to reveal multiple kagome-derived van Hove singularities (vHS) coexisting near the Fermi level of CsV3Sb5 and analyse their contribution to electronic symmetry breaking.
Journal ArticleDOI
Rotation symmetry breaking in the normal state of a kagome superconductor KV3Sb5
TL;DR: In this article , the authors used spectroscopic-imaging scanning tunneling microscopy to reveal a pronounced intensity anisotropy between different 2a0 charge density wave (CDW) directions in KV3Sb5.
Journal ArticleDOI
Three-state nematicity and magneto-optical Kerr effect in the charge density waves in kagome superconductors
Yishuai Xu,Zhuoliang Ni,Yizhou Liu,Brenden R. Ortiz,S J Wilson,Binghai Yan,Leon Balents,Liang-Mei Wu +7 more
TL;DR: In this article , the authors performed birefringence microscopy on all three members of this family and found that sixfold rotation symmetry is broken at the onset of the charge-density wave transition in all these compounds.
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