298 citations · 1.6k across the 18 of their papers we have counts for
18 papers
Evolution of the intertwining correlated topological phases in iron-based superconductor Fe(Te,Se)
Yue Sun, Shiying He, Zhongyi Zhang +16
Multiple topological electronic phases can coexist within a single quantum material and induce different topological superconducting states, offering deeper insights into interplay…
Double Majorana Vortex Flat Bands in the Topological Dirac Superconductor
Zhongyi Zhang, Zixi Fang, Shengshan Qin +3
Vortex lines, known as topological defects, are cable of trapping Majorana modes in superconducting topological materials. Previous studies have primarily focused on topological ba…
Selective observation of surface and bulk bands in polar WTe2 by laser-based spin- and angle-resolved photoemission spectroscopy
Yuxuan Wan, Lihai Wang, Kenta Kuroda +12
The electronic state of WTe2, a candidate of type-II Weyl semimetal, is investigated by using laser-based spin- and angle-resolved photoemission spectroscopy (SARPES). We prepare t…
Observation and control of the weak topological insulator state in ZrTe5
Peng Zhang, Ryo Noguchi, Kenta Kuroda +14
A quantum spin Hall insulator hosts topological states at the one-dimensional edge, along which backscattering by nonmagnetic impurities is strictly prohibited and dissipationless…
Visualization of the strain-induced topological phase transition in a quasi-one-dimensional superconductor TaSe3
Chun Lin, Masayuki Ochi, Ryo Noguchi +18
Control of the phase transition from topological to normal insulators can allow for an on/off switching of spin current. While topological phase transitions have been realized by e…
Material design with the van der Waals stacking of bismuth-halide chains realizing a higher-order topological insulator
Ryo Noguchi, Masaru Kobayashi, Zhanzhi Jiang +28
The van der Waals (vdW) materials with low dimensions have been extensively studied as a platform to generate exotic quantum properties. Advancing this view, a great deal of attent…
Magnetic topological insulator MnBi6Te10 with zero-field ferromagnetic state and gapped Dirac surface states
Shangjie Tian, Shunye Gao, Simin Nie +14
Magnetic topological insulators (TIs) with nontrivial topological electronic structure and broken time-reversal symmetry exhibit various exotic topological quantum phenomena. The r…
Dirac surface states in intrinsic magnetic topological insulators EuSn2As2 and MnBi2nTe3n+1
Hang Li, Shun-Ye Gao, Shao-Feng Duan +24
In magnetic topological insulators (TIs), the interplay between magnetic order and nontrivial topology can induce fascinating topological quantum phenomena, such as the quantum ano…
A new Majorana platform in an Fe-As bilayer superconductor
Wenyao Liu, Lu Cao, Shiyu Zhu +16
Recently, iron-chalcogenide superconductors have emerged as a new and promising platform for studying and manipulating Majorana zero mode (MZM). By combining topological band struc…
Multiple topological states in iron-based superconductors
Peng Zhang, Zhijun Wang, Xianxin Wu +24
Topological insulators and semimetals as well as unconventional iron-based superconductors have attracted major recent attention in condensed matter physics. Previously, however, l…
Disorder-sensitive node-like small gap in FeSe
Yue Sun, Shunichiro Kittaka, Shota Nakamura +8
We investigate the band structure, nematic state and superconducting gap structure of two selected FeSe single crystals containing different amount of disorder. Transport and angle…
Direct observation of multiple topological phases in the iron-based superconductor Li(Fe,Co)As
Peng Zhang, Xianxin Wu, Koichiro Yaji +7
Topological insulators/semimetals and unconventional iron-based superconductors have attracted major attentions in condensed matter physics in the past 10 years. However, there is…
Topological Dirac semimetal phase in the iron-based superconductor Fe(Te,Se)
Peng Zhang, Zhijun Wang, Yukiaki Ishida +20
Topological Dirac semimetals (TDSs) exhibit bulk Dirac cones protected by time reversal and crystal symmetry, as well as surface states originating from non-trivial topology. While…
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…
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…
Observation of two distinct band splittings in FeSe
P. Zhang, T. Qian, P. Richard +10
We report the temperature evolution of the detailed electronic band structure in FeSe single-crystals measured by angle-resolved photoemission spectroscopy (ARPES), including the d…
Observation of a van Hove singularity and implication for strong coupling induced Cooper pairing in KFe2As2
Delong Fang, Xun Shi, Zengyi Du +14
Scanning tunneling spectroscopy (STS) and angle-resolved photoemission spectroscopy (ARPES) have been investigated on single crystal samples of KFe2As2. A van Hove singularity (vHs…
Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFeAsP
P. Richard, C. Capan, J. Ma +8
We used angle-resolved photoemission spectroscopy to investigate the electronic structure of EuFeAs, EuFeAsP and EuFeP. We observed doubled core…