56 citations · 263 across the 12 of their papers we have counts for
12 papers
Non-Majorana-origin of the half-integer conductance quantization elucidated by multi-terminal superconductor-quantum anomalous Hall insulator heterostructure
Anjana Uday, Gertjan Lippertz, Bibek Bhujel +2
Chiral one-dimensional transport can be realized in thin films of a surface-insulating ferromagnetic topological insulator called quantum anomalous Hall insulator (QAHI). When supe…
Characterizing the chemical potential disorder in the topological insulator (BiSb)Te thin films
Jens Brede, Mahasweta Bagchi, Adrian Greichgauer +6
We use scanning tunneling microscopy and spectroscopy under ultra-high vacuum and down to 1.7 K to study the local variations of the chemical potential on the surface of the topolo…
Propagation, dissipation and breakdown in quantum anomalous Hall edge states probed by microwave edge plasmons
Torsten Röper, Hugo Thomas, Daniel Rosenbach +7
The quantum anomalous Hall (QAH) effect, with its single chiral, topologically protected edge state, offers a platform for flying Majorana states as well as non-reciprocal microwav…
Selective-Area Epitaxy of Bulk-Insulating (BiSb)Te Films and Nanowires by Molecular Beam Epitaxy
Gertjan Lippertz, Oliver Breunig, Rafael Fister +5
The selective-area epitaxy (SAE) is a useful technique to grow epitaxial films with a desired shape on a pre-patterned substrate. Although SAE of patterned topological-insulator (T…
Induced superconducting correlations in the quantum anomalous Hall insulator
Anjana Uday, Gertjan Lippertz, Kristof Moors +5
Inducing Cooper pairing in a thin ferromagnetic topological insulator in the quantum anomalous Hall state (called quantum anomalous Hall insulator, QAHI) is a promising way to real…
Top-down fabrication of bulk-insulating topological insulator nanowires for quantum devices
Matthias Rößler, Dingxun Fan, Felix Münning +8
In a nanowire (NW) of a three-dimensional topological insulator (TI), the quantum-confinement of topological surface states leads to a peculiar subband structure that is useful for…
Giant magnetochiral anisotropy from quantum confined surface states of topological insulator nanowires
Henry F. Legg, Matthias Rößler, Felix Münning +9
Wireless technology relies on the conversion of alternating electromagnetic fields to direct currents, a process known as rectification. While rectifiers are normally based on semi…
Current-induced breakdown of the quantum anomalous Hall effect
Gertjan Lippertz, Andrea Bliesener, Anjana Uday +3
The quantum anomalous Hall effect (QAHE) realizes dissipationless longitudinal resistivity and quantized Hall resistance without the need of an external magnetic field. However, wh…
Proximity-induced superconductivity in (BiSb)Te topological-insulator nanowires
Mengmeng Bai, Xian-Kui Wei, Junya Feng +7
When a topological insulator is made into a nanowire, the interplay between topology and size quantization gives rise to peculiar one-dimensional states whose energy dispersion can…
Relaxation dynamics of the optically driven nonequilibrium states in the electron- and hole-doped topological-insulator materials
Chris Reinhoffer, Yu Mukai, Semyon Germanskiy +7
We report on time-resolved mid-infrared-pump terahertz-transmission-probe studies of the topological-insulator materials , in which by varying x charge…
Structural and electronic properties of the pure and stable elemental 3D topological Dirac semimetal -Sn
Ivan Madarevic, Umamahesh Thupakula, Gertjan Lippertz +10
In-plane compressively strained -Sn films have been theoretically predicted and experimentally proven to possess non-trivial electronic states of a 3D topological Dirac semimeta…
Novel self-epitaxy for inducing superconductivity in the topological insulator (Bi1-xSbx)2Te3
Mengmeng Bai, Fan Yang, Martina Luysberg +6
Using the superconducting proximity effect for engineering a topological superconducting state in a topological insulator (TI) is a promising route to realize Majorana fermions. Ho…