134 citations · 457 across the 15 of their papers we have counts for
15 papers
Edge States of α-Bismuthene Nanostructures
Sara Salehitaleghani, Tobias Maerkl, Pawel J Kowalczyk +5
We present a systematic investigation of the edge states of two-dimensional α-bismuthene (α-Bi) structures self-assembled on HOPG substrates, using scanning tunnelling microscopy a…
Double band inversion in the topological phase transition of Ge1-xSnx alloys
Rui Tan, Qirui Yang, Ruiyuan Chen +5
We use first-principles simulation and virtual crystal approximation to reveal the unique double band inversion and topological phase transition in Ge1-xSnx alloys. Wavefunction pa…
Discovery of the Superconductivity in 3d Element Ni doped IrTe
Qiang Jing, Ping Li, Yunze Long +11
IrTe with large spin-orbital coupling (SOC) shows a CDW-like first order structural phase transition from high-temperature trigonal phase to low-temperature monoclinic phase at…
Strong band kinks in magic-thickness Yb films arising from interfacial electron-phonon coupling
Yi Wu, Yuan Fang, Shuyi Zhou +7
Interfacial electron-phonon coupling in ultrathin films has attracted much interest; it can give rise to novel effects and phenomena, including enhanced superconductivity. Here we…
Realisation of Symmetry Enforced Two-Dimensional Dirac Fermions in Nonsymmorphic -Bismuthene
Pawel J. Kowalczyk, Simon A. Brown, Tobias Maerkl +11
Two-dimensional (2D) Dirac-like electron gases have attracted tremendous research interest ever since the discovery of free-standing graphene. The linear energy dispersion and non-…
Superconducting properties in a candidate topological nodal line semimetal SnTaS with a centrosymmetric crystal structure
Dong-Yun Chen, Yuelong Wu, Lei Jin +9
We report the magnetization, electrical resistivity, specific heat measurements and band structure calculations of layered superconductor SnTaS. The experiments are performed o…
In-situ strain tuning of the Dirac surface states in Bi2Se3 films
David Floetotto, Yang Bai, Yang-Hao Chan +12
Elastic strain has the potential for a controlled manipulation of the band gap and spin-polarized Dirac states of topological materials, which can lead to pseudo-magnetic-field eff…
Experimental and Theoretical Electronic Structure and Symmetry Effects in Ultrathin NbSe2 Films
Cai-Zhi Xu, Xiaoxiong Wang, Peng Chen +6
Layered quasi-two-dimensional transition metal dichalcogenides (TMDCs), which can be readily made in ultrathin films, offer excellent opportunities for studying how dimensionality…
Pt-Bi Antibonding Interaction: The Key Factor for Superconductivity in Monoclinic BaPt2Bi2
Xin Gui, Lingyi Xing, Xiaoxiong Wang +3
In the search for superconductivity in BaAu2Sb2-type monoclinic structure, we have successfully synthesized a new compound BaPt2Bi2, which crystallizes in the space group P21/m (S.…
Gapped Electronic Structure of Epitaxial Stanene on InSb(111)
Cai-Zhi Xu, Yang-Hao Chan, Peng Chen +7
Stanene (single-layer grey tin), with an electronic structure akin to that of graphene but exhibiting a much larger spin-orbit gap, offers a promising platform for room-temperature…
Band Topology and Dichroic Signature of Bismuth
Guang Bian, Tay-Rong Chang, Xiaoxiong Wang +3
Bismuth has been the key element in the discovery and development of topological insulator materials. Previous theoretical studies indicated that Bi is topologically trivial and it…
Engineering Multiple Topological Phases in Nanoscale Van der Waals Heterostructures: Realisation of -Antimonene
Tobias Märkl, Pawel J. Kowalczyk, Maxime Le Ster +7
Van der Waals heterostructures have recently been identified as providing many opportunities to create new two-dimensional materials, and in particular to produce materials with to…
Elemental topological Dirac semimetal: α-Sn on InSb(111)
Cai-Zhi Xu, Yang-Hao Chan, Yige Chen +12
Three-dimensional (3D) topological Dirac semimetals (TDSs) are rare but important as a versatile platform for exploring exotic electronic properties and topological phase transitio…
Direct Transition Resonance in Atomically Uniform Topological Sb(111) Thin Films
Guang Bian, Caizhi Xu, Tay-Rong Chang +8
Atomically uniform Sb(111) films are fabricated by the method of molecular beam epitaxy on an optimized Si(111) surface. Two dimensional quantum well states and topological surface…
Engineering electronic structure of a 2D topological insulator Bi(111) bilayer on Sb nanofilms by quantum confinement effect
Guang Bian, Z. F. Wang, Xiaoxiong Wang +6
We report on fabrication of a two-dimensional topological insulator-Bi(111) bilayer on Sb nanofilms via a sequential molecular beam epitaxy (MBE) growth technique. Our angle-resolv…