295 citations · 3.1k across the 44 of their papers we have counts for
17 papers · 1 filter
Experimental observation and spin texture of Dirac node arcs in tetradymite topological metals
J. Dai, E. Frantzeskakis, N. Aryal +10
We report the observation of a non-trivial spin texture in Dirac node arcs, novel topological objects formed when Dirac cones of massless particles extend along an open one-dimensi…
Observation of a cubic Rashba effect in the surface spin structure of rare-earth ternary materials
D. Yu. Usachov, I. A. Nechaev, G. Poelchen +17
Spin-orbit interaction and structure inversion asymmetry in combination with magnetic ordering is a promising route to novel materials with highly mobile spin-polarized carriers at…
Observation of the spin-polarized surface state in a noncentrosymmetric superconductor BiPd
Madhab Neupane, Nasser Alidoust, M. Mofazzel Hosen +17
Recently, noncentrosymmetric superconductor BiPd has attracted considerable research interest due to the possibility of hosting topological superconductivity. Here we report a syst…
Experimental realization of type-II Weyl state in non-centrosymmetric TaIrTe
E. Haubold, K. Koepernik, D. Efremov +14
Recent breakthrough in search for the analogs of fundamental particles in condensed matter systems lead to experimental realizations of 3D Dirac and Weyl semimetals. Weyl state can…
Lifshitz transition and van Hove singularity in a Topological Dirac Semimetal
Su-Yang Xu, Chang Liu, I. Belopolski +20
A topological Dirac semimetal is a novel state of quantum matter which has recently attracted much attention as an apparent 3D version of graphene. In this paper, we report critica…
Observation of a bulk 3D Dirac multiplet, Lifshitz transition, and nestled spin states in Na3Bi
Su-Yang Xu, Chang Liu, S. K. Kushwaha +20
Symmetry or topology protected Dirac fermion states in two and three dimensions constitute novel quantum systems that exhibit exotic physical phenomena. However, none of the studie…
Realization of bulk insulating property and carrier manipulation in reversible spin current regime of the ideal topological insulator TlBiSe2
Kenta Kuroda, Gaku Eguchi, Kaito Shirai +10
The surfaces of three-dimensional topological insulators (TIs) characterized by a spin-helical Dirac fermion provide a fertile ground for realizing exotic phenomena as well as havi…
Experimental verification of the surface termination in the topological insulator TlBiSe using core-level photoelectron spectroscopy and scanning tunneling microscopy
Kenta Kuroda, Mao Ye, Eike F. Schwier +10
The surface termination of the promising topological insulator TlBiSe has been studied by surface and bulk sensitive probes. Our scanning tunneling microscopy has unmasked fo…
Unoccupied topological surface state in BiTeSe
Munisa Nurmamat, E. E. Krasovskii, K. Kuroda +10
Bias voltage dependent scattering of the topological surface state is studied by scanning tunneling microscopy/spectroscopy for a clean surface of the topological insulator BiT…
Two-fold symmetry flattens Dirac cone of surface state at W(110)
K. Miyamoto, A. Kimura, T. Okuda +6
The symmetry of the W(110) surface influences strongly the spin-polarized Dirac-cone-like surface state within a spin-orbit-induced symmetry gap. We present a detailed ang…
Observation of a Highly Spin Polarized Topological Surface State in GeBiTe
K. Okamoto, K. Kuroda, H. Miyahara +10
Spin polarization of a topological surface state for GeBiTe, the newly discovered three-dimensional topological insulator, has been studied by means of the state of the art…
Topological Surface States with Persistent High Spin Polarization across Dirac Point in BiTeSe and BiSeTe
K. Miyamoto, A. Kimura, T. Okuda +9
Helical spin textures with the marked spin polarizations of topological surface states have been firstly unveiled by the state-of-the-art spin- and angle-resolved photoemission spe…
Relocation of the topological surface state of BiSe beneath the surface by Ag intercalation
M. Ye, S. V. Eremeev, K. Kuroda +16
We studied the Ag-intercalated 3D topological insulator BiSe by scanning tunneling microscopy/spectroscopy and angle-resolved photoemission spectroscopy, combined with…
Experimental verification of PbBiTe as a 3D topological insulator
K. Kuroda, H. Miyahara, M. Ye +15
The first experimental evidence is presented of the topological insulator state in PbBiTe. A single surface Dirac cone is observed by angle-resolved photoemission spect…
Spin-polarized Dirac-cone-like surface state with character at W(110)
K. Miyamoto, A. Kimura, K. Kuroda +5
The surface of W(110) exhibits a Dirac-cone-like surface state with character within a spin-orbit-induced symmetry gap. As a function of wave vector parallel to the surface, it…
Surface Scattering via Bulk Continuum States in the 3D Topological Insulator BiSe
Sunghun Kim, M. Ye, K. Kuroda +11
We have performed scanning tunneling microscopy and differential tunneling conductance () mapping for the surface of the three dimensional topological insulator BiSe$_…
Direct evidence of spin-split one-dimensional metallic surface state on Si(557)-Au
Taichi Okuda, Koji Miyamoto, Yasuo Takeichi +8
We report unprecedented evidence of a spin split one-dimensional metallic surface state for the system of Si(557)-Au obtained by means of high-resolution spin- and angle-resolved p…