1.7k citations · 3.4k across the 28 of their papers we have counts for
28 papers
Phonon promoted charge density wave in topological kagome metal ScVSn
Yong Hu, Junzhang Ma, Yinxiang Li +21
Charge density wave (CDW) orders in vanadium-based kagome metals have recently received tremendous attention due to their unique properties and intricate interplay with exotic corr…
Non-trivial band topology and orbital-selective electronic nematicity in a new titanium-based kagome superconductor
Yong Hu, Congcong Le, Zhen Zhao +11
Electronic nematicity that spontaneously breaks rotational symmetry has been shown as a generic phenomenon in correlated quantum systems including high-temperature superconductors…
Anomalous quasiparticles in the zone center electron pocket of the kagomé ferromagnet Fe3Sn2
Sandy Adhitia Ekahana, Y. Soh, Anna Tamai +14
One material containing kagome bilayers and featuring both exceptional magnetism and electron transport is the ferromagnetic metal Fe3Sn2. Notwithstanding the widespread interest i…
Tunable Topological Dirac Surface States and Van Hove Singularities in Kagome Metal GdVSn
Yong Hu, Xianxin Wu, Yongqi Yang +6
Transition-metal-based kagome materials at van Hove filling are a rich frontier for the investigation of novel topological electronic states and correlated phenomena. To date, in t…
Giant Chern number of a Weyl nodal surface without upper limit
Junzhang Ma, S. -N. Zhang, J. P. Song +15
Weyl nodes can be classified into zero-dimensional (0D) Weyl points (WPs), 1D Weyl nodal lines (WNL) and 2D Weyl nodal surfaces (WNS), which possess finite Chern numbers. Up to dat…
Rich Nature of Van Hove Singularities in Kagome Superconductor CsVSb
Yong Hu, Xianxin Wu, Brenden R. Ortiz +9
The recently discovered layered kagome metals AVSb (A=K, Rb, Cs) exhibit diverse correlated phenomena, which are intertwined with a topological electronic structure with mu…
Charge-order-assisted topological surface states and flat bands in the kagome superconductor CsVSb
Yong Hu, Samuel M. L. Teicher, Brenden R. Ortiz +8
The diversity of emergent phenomena in quantum materials often arises from the interplay between different physical energy scales or broken symmetries. Cooperative interactions amo…
Discovery of Ĉ rotation anomaly in topological crystalline insulator SrPb
Wenhui Fan, Simin Nie, Cuixiang Wang +12
Topological crystalline insulators (TCIs) are insulating electronic states with nontrivial topology protected by crystalline symmetries. Recently, theory has proposed new classes o…
Multiple mobile excitons manifested as sidebands in quasi-one-dimensional metallic TaSe3
Junzhang Ma, Simin Nie, Xin Gui +22
Charge neutrality and their expected itinerant nature makes excitons potential transmitters of information. However, exciton mobility remains inaccessible to traditional optical ex…
Surface Conductivity in Antiferromagnetic Semiconductor CrSb
Qianheng Du, Huixia Fu, Junzhang Ma +4
The contribution of bulk and surface to the electrical resistance along crystallographic \textit{b}- and \textit{c}-axes as a function of crystal thickness gives evidence for a tem…
Anisotropic gapping of topological Weyl rings in the charge-density-wave superconductor InxTaSe2
Yupeng Li, Yi Wu, Chenchao Xu +19
Topological materials and topological phases have recently become a hot topic in condensed matter physics. In this work, we report a topological nodal-line semimetal InxTaSe2, in t…
Topological Magnetic Phase in the Candidate Weyl Semimetal CeAlGe
P. Puphal, V. Pomjakushin, N. Kanazawa +9
We report the discovery of topological magnetism in the candidate magnetic Weyl semimetal CeAlGe. Using neutron scattering we find this system to host several incommensurate, squar…
Metal-to-insulator transition in Pt-doped TiSe driven by emergent network of narrow transport channels
Kyungmin Lee, Jesse Choe, Davide Iaia +13
Metal-to-insulator transitions (MIT) can be driven by a number of different mechanisms, each resulting in a different type of insulator -- Change in chemical potential can induce a…
Moderate hybridization effects revealed by ARPES in heavy-fermion Ce2IrIn8
H. -J. Liu, Y. -J. Xu, Y. -G. Zhong +9
We utilized high-resolution resonant angle-resolved photoemission spectroscopy (ARPES) to study the band structure and hybridization effect of the heavy-fermion compound Ce2IrIn8.…
Observation of bulk nodal lines in topological semimetal ZrSiS
Binbin Fu, Changjiang Yi, Tiantian Zhang +13
ZrSiS is the most intensively studied topological nodal-line semimetal candidate, which is proposed to host multiple nodal lines in its bulk electronic structure. However, previous…
Three-component fermions with surface Fermi arcs in topological semimetal tungsten carbide
J. -Z. Ma, J. -B. He, Y. -F. Xu +19
Topological Dirac and Weyl semimetals not only host quasiparticles analogous to the elementary fermionic particles in high-energy physics, but also have nontrivial band topology ma…
Observation of oscillatory relaxation in the Sn-terminated surface of epitaxial rock-salt SnSe topological crystalline insulator
Wencan Jin, Suresh Vishwanath, Jianpeng Liu +20
Topological crystalline insulators have been recently predicted and observed in rock-salt structure SnSe thin films. Previous studies have suggested that the Se-terminate…
Evidence of topological insulator state in the semimetal LaBi
R. Lou, B. -B. Fu, Q. N. Xu +17
By employing angle-resolved photoemission spectroscopy combined with first-principles calculations, we performed a systematic investigation on the electronic structure of LaBi, whi…
Topologically entangled Rashba-split Shockley states on the surface of grey arsenic
Peng Zhang, J. -Z. Ma, Y. Ishida +13
We discover a pair of spin-polarized surface bands on the (111) face of grey arsenic by using angle-resolved photoemission spectroscopy (ARPES). In the occupied side, the pair rese…
NaFeCuAs: A pnictide insulating phase induced by on-site Coulomb interaction
C. E. Matt, N. Xu, B. Q. Lv +13
In the studies of iron-pnictides, a key question is whether their bad-metal state from which the superconductivity emerges lies in close proximity with a magnetically ordered insul…
Fermi surface and effective masses in photoemission response of the (BaK)FeAs superconductor
Gerald Derondeau, Federico Bisti, Masaki Kobayashi +9
The angle-resolved photoemission spectra of the superconductor (BaK)FeAs have been investigated both experimentally and theoretically. Our results explain the p…
Experimental Discovery of the First Nonsymmorphic Topological Insulator KHgSb
J. -Z. Ma, C. -J. Yi, B. Q. Lv +11
Topological insulators (TIs) host novel states of quantum matter, distinguished from trivial insulators by the presence of nontrivial conducting boundary states connecting the vale…
Compensated semimetal LaSb with unsaturated magnetoresistance
L. -K. Zeng, R. Lou, D. -S. Wu +23
By combining angle-resolved photoemission spectroscopy and quantum oscillation measurements, we performed a comprehensive investigation on the electronic structure of LaSb, which e…
Emergence of topological bands on the surface of ZrSnTe crystal
R. Lou, J. -Z. Ma, Q. -N. Xu +12
By using angle-resolved photoemission spectroscopy combined with first-principles calculations, we reveal that the topmost unit cell of ZrSnTe crystal hosts two-dimensional (2D) el…