488 citations · 2k across the 19 of their papers we have counts for
19 papers
Optical manipulation of Rashba-split 2-Dimensional Electron Gas
M. Michiardi, F. Boschini, H. -H. Kung +11
In spintronic devices, the two main approaches to actively control the electrons' spin degree of freedom involve either static magnetic or electric fields. An alternative avenue re…
Phase Transition of Na3SbS4 Superionic Conductor and Its Impact on Ion Transport
Dechao Zhang, Xiaoting Cao, Di Xu +7
In this work, a comprehensive research coupling experiment and computation has been performed to understand the phase transition of Na3SbS4 and to synthesize cubic Na3SbS4 (c-Na3Sb…
Absence of superconductivity in ultra-thin layers of FeSe synthesized on a topological insulator
Andreas Eich, Nils Rollfing, Fabian Arnold +10
The structural and electronic properties of FeSe ultra-thin layers on BiSe have been investigated with a combination of scanning tunneling microscopy and spectroscopy a…
Non-magnetic ground state of Ni adatoms on Te-terminated bismuth chalcogenide topological insulators
M. Vondracek, J. Honolka, L. Cornils +20
We report on the quenching of single Ni adatom moments on Te-terminated Bi2Te2Se and Bi2Te3 topological insulator surfaces. The effect becomes manifested as a missing X-ray magneti…
Sputtering induced re-emergence of the topological surface state in BiSe
Raquel Queiroz, Gabriel Landolt, Stefan Muff +9
We study the fate of the surface states of BiSe under disorder with strength larger than the bulk gap, caused by neon sputtering and nonmagnetic adsorbates. We find that ne…
Strongly anisotropic spin-orbit splitting in a two-dimensional electron gas
Matteo Michiardi, Marco Bianchi, Maciej Dendzik +8
Near-surface two-dimensional electron gases on the topological insulator BiTeSe are induced by electron doping and studied by angle-resolved photoemission spectroscopy. A p…
Intra- and Interband Electron Scattering in the Complex Hybrid Topological Insulator Bismuth Bilayer on BiSe
A. Eich, M. Michiardi, G. Bihlmayer +7
The band structure, intra- and interband scattering processes of the electrons at the surface of a bismuth-bilayer on BiSe have been experimentally investigated by low-temp…
Screening and atomic-scale engineering of the potential at a topological insulator surface
P. Löptien, L. Zhou, J. Wiebe +5
The electrostatic behavior of a prototypical three-dimensional topological insulator BiSe(111) is investigated by a scanning tunneling microscopy (STM) study of the distrib…
Direct Measurement of Surface Transport on a Bulk Topological Insulator
Lucas Barreto, Lisa Kühnemund, Frederik Edler +7
Topological insulators are guaranteed to support metallic surface states on an insulating bulk, and one should thus expect that the electronic transport in these materials is domin…
Surface structure of Bi2Se3(111) determined by low-energy electron diffraction and surface X-ray diffraction
Diogo Duarte dos Reis, Lucas Barreto, Marco Bianchi +11
The surface structure of the prototypical topological insulator Bi2Se3 is determined by low-energy electron diffraction and surface X-ray diffraction at room temperature. Both appr…
Controllable magnetic doping of the surface state of a topological insulator
T. Schlenk, M. Bianchi, M. Koleini +11
A combined experimental and theoretical study of doping individual Fe atoms into Bi2Se3 is presented. It is shown through a scanning tunneling microscopy study that single Fe atoms…
Evidence for a direct band gap in the topological insulator Bi2Se3 from theory and experiment
I. A. Nechaev, R. C. Hatch, M. Bianchi +8
Using angle-resolved photoelectron spectroscopy and ab-initio GW calculations, we unambiguously show that the widely investigated three-dimensional topological insulator Bi2Se3 has…
Robust Surface Doping of BiSe by Rb Intercalation
Marco Bianchi, Richard C. Hatch, Zheshen Li +11
Rubidium adsorption on the surface of the topological insulator BiSe is found to induce a strong downward band bending, leading to the appearance of a quantum-confined two…
The electronic structure of clean and adsorbate-covered Bi2Se3: an angle-resolved photoemission study
Marco Bianchi, Richard C. Hatch, Dandan Guan +4
Angle-resolved photoelectron spectroscopy is used for a detailed study of the electronic structure of the topological insulator Bi2Se3. Nominally stoichiometric and calcium-doped s…
In-plane magnetic anisotropy of Fe atoms on BiSe(111)
J. Honolka, A. A. Khajetoorians, V. Sessi +11
The robustness of the gapless topological surface state hosted by a 3D topological insulator against perturbations of magnetic origin has been the focus of recent investigations. W…
Simultaneous quantization of bulk conduction and valence states through adsorption of nonmagnetic impurities on Bi2Se3
Marco Bianchi, Richard C. Hatch, Jianli Mi +2
Exposing the (111) surface of the topological insulator Bi2Se3 to carbon monoxide results in strong shifts of the features observed in angle-resolved photoemission. The behavior is…
Stability of the Bi2Se3(111) topological state: electron-phonon and -defect scattering
Richard C. Hatch, Marco Bianchi, Dandan Guan +6
The electron dynamics of the topological surface state on Bi2Se3(111) is investigated by temperature-dependent angle-resolved photoemission. The electron-phonon coupling strength i…
Large tuneable Rashba spin splitting of a two-dimensional electron gas in Bi2Se3
P. D. C. King, R. C. Hatch, M. Bianchi +18
We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator BiSe from angle-resolved photoemission spectroscopy. We further demonstrate…
Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi2Se3
Marco Bianchi, Dandan Guan, Shining Bao +4
Topological insulators are a recently discovered class of materials with fascinating properties: While the inside of the solid is insulating, fundamental symmetry considerations re…