845 citations · 4.4k across the 26 of their papers we have counts for
22 papers
Photoemission Evidence of a Novel Charge Order in Kagome Metal FeGe
Zhisheng Zhao, Tongrui Li, Peng Li +16
A charge order has been discovered to emerge deep into the antiferromagnetic phase of the kagome metal FeGe. To study its origin, the evolution of the low-lying electronic structur…
Origin of the exotic electronic states in antiferromagnetic NdSb
Peng Li, Tongrui Li, Sen Liao +10
Using angle resolved photoemission spectroscopy measurements and first principle calculations, we report that the possible unconventional 2q antiferromagnetic (AFM) order in NdSb c…
Evidence of high-temperature exciton condensation in a two-dimensional semimetal
Qiang Gao, Yang-hao Chan, Yuzhe Wang +10
Electrons and holes can spontaneously form excitons and condense in a semimetal or semiconductor, as predicted decades ago. This type of Bose condensation can happen at much higher…
Electronic Origin for the Enhanced Thermoelectric Efficiency of Cu2Se
Shucui Sun, Yiwei Li, Yujie Chen +19
Thermoelectric materials (TMs) can uniquely convert waste heat into electricity, which provides a potential solution for the global energy crisis that is increasingly severe. Bulk…
An ideal Weyl semimetal induced by magnetic exchange
J. -R. Soh, F. de Juan, M. G. Vergniory +15
Weyl semimetals exhibit exceptional quantum electronic transport due to the presence of topologically-protected band crossings called Weyl nodes. The nodes come in pairs with oppos…
Realization of Quantum Spin Hall State in Monolayer 1T'-WTe2
Shujie Tang, Chaofan Zhang, Dillon Wong +23
A quantum spin Hall (QSH) insulator is a novel two-dimensional quantum state of matter that features quantized Hall conductance in the absence of magnetic field, resulting from top…
Dirac Line-nodes and Effect of Spin-orbit Coupling in Non-symmorphic Critical Semimetal MSiS (M=Hf, Zr)
C. Chen, X. Xu, J. Jiang +18
Topological Dirac semimetals (TDSs) represent a new state of quantum matter recently discovered that offers a platform for realizing many exotic physical phenomena. A TDS is charac…
Nontrivial Berry phase and type II Dirac transport in layered material PdTe2
Fucong Fei, Xiangyan Bo, Rui Wang +11
Here we report the evidence of the type II Dirac Fermion in the layered crystal PdTe2. The de Haas-van Alphen oscillations find a small Fermi pocket with a cross section of 0.077nm…
Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
Junfeng He, Chaofan Zhang, Nirmal J. Ghimire +15
An extreme magnetoresistance (XMR) has recently been observed in several non-magnetic semimetals. Increasing experimental and theoretical evidence indicates that the XMR can be dri…
Evidence of both surface and bulk Dirac bands in ZrSiS and the unconventional magnetoresistance
Xuefeng Wang, Xingchen Pan, Ming Gao +15
The unconventional magnetoresistance of ZrSiS single crystals is found unsaturated till the magnetic field of 53 T with the butterfly shaped angular dependence. Intense Shubnikov-d…
Highly anisotropic and two-fold symmetric superconducting gap in nematically ordered FeSeS
H. C. Xu, X. H. Niu, D. F. Xu +7
FeSe exhibits a novel ground state in which superconductivity coexists with a nematic order in the absence of any long-range magnetic order. Here we report an angle-resolved photoe…
Observation of Unusual Topological Surface States in Half-Heusler Compounds LnPtBi (Ln=Lu, Y)
Zhongkai Liu, Lexian Yang, Shu-Chun Wu +9
Topological quantum materials represent a new class of matter with both exotic physical phenomena and novel application potentials. Many Heusler compounds, which exhibit rich emerg…
Identification of prototypical Brinkman-Rice Mott physics in a class of iron chalcogenides superconductors
X. H. Niu, S. D. Chen, J. Jiang +17
The 122 series of iron-chalcogenide superconductors, for example KFeSe, only possesses electron Fermi pockets. Their distinctive electronic structure challe…
Robust linear magnetoresistance in WTe2
Xing-Chen Pan, Yiming Pan, Juan Jiang +15
Unsaturated magnetoresistance (MR) has been reported in WTe2, and remains irrepressible up to very high field. Intense optimization of the crystalline quality causes a squarely-inc…
Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6
M. Xia, J. Jiang, Z. R. Ye +10
We report the electronic structure of YbB6, a recently predicted moderately correlated topological insulator, measured by angle-resolved photoemission spectroscopy. We directly obs…
Interface-induced superconductivity and strain-dependent spin density wave in FeSe/SrTiO3 thin films
S. Y. Tan, M. Xia, Y. Zhang +14
The record of superconducting transition temperature(Tc) has long been 56K for the iron-based high temperature superconductors(Fe-HTS's). Recently, in single layer FeSe films grown…
The distinct in-plane resistivity anisotropy in the nematic states of detwinned NaFeAs and FeTe single crystals: evidences for Hund's rule metal
Juan Jiang, C. He, Y. Zhang +6
The in-plane resistivity anisotropy has been studied with the Montgomery method on two detwinned parent compounds of the iron-based superconductors, NaFeAs and FeTe. For NaFeAs, th…
Angle-resolved photoemission evidence of s-wave superconducting gap in KxFe2-ySe2 superconductor
M. Xu, Q. Q. Ge, R. Peng +7
Although nodeless superconducting gap has been observed on the large Fermi pockets around the zone corner in KxFe2-ySe2, whether its pairing symmetry is s-wave or nodeless d-wave i…
Symmetry breaking via orbital-dependent reconstruction of electronic structure in uniaxially strained NaFeAs
Y. Zhang, C. He, Z. R. Ye +11
The superconductivity discovered in iron-pnictides is intimately related to a nematic ground state, where the C4 rotational symmetry is broken via the structural and magnetic trans…
Nodal superconducting gap structure in ferropnictide superconductor BaFe2(As0.7P0.3)2
Y. Zhang, Z. R. Ye, Q. Q. Ge +5
The superconducting gap is a pivotal character for a superconductor. While the cuprates and conventional phonon-mediated superconductors are characterized by distinct d-wave and s-…
Electronic identification of the actual parental phase of KxFe2-ySe2 superconductor and its intrinsic mesoscopic phase separation
F. Chen, M. Xu, Q. Q. Ge +14
While the parent compounds of the cuprate high temperature superconductors (high-Tc's) are Mott insulators, the iron-pnictide high-Tc's are in the vicinity of a metallic spin densi…
Heavily electron-doped electronic structure and isotropic superconducting gap in AxFe2Se2 (A=K,Cs)
Y. Zhang, L. X. Yang, M. Xu +10
The low energy band structure and Fermi surface of the newly discovered superconductor, AxFe2Se2 (A=K,Cs), have been studied by angle-resolved photoemission spectroscopy. Compared…