61 citations · 269 across the 12 of their papers we have counts for
12 papers
Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer
Matija Karalic, Antonio Štrkalj, Michele Masseroni +7
Electron optics in the solid state promises new functionality in electronics through the possibility of realizing micrometer-sized interferometers, lenses, collimators and beam spl…
Gate-tunable Electronic Transport in p-type GaSb Quantum Wells
Matija Karalic, Christopher Mittag, Michael Hug +6
We investigate two-dimensional hole transport in GaSb quantum wells at cryogenic temperatures using gate-tunable devices. Measurements probing the valence band structure of GaSb un…
Phase Slips and Parity Jumps in Quantum Oscillations of Inverted InAs/GaSb Quantum Wells
Matija Karalic, Christopher Mittag, Susanne Mueller +5
We present magnetotransport measurements of a strongly hybridized inverted InAs/GaSb double quantum well. We find that the spin-orbit interaction leads to an appreciable spin-split…
Edgeless and Purely Gate-Defined Nanostructures in InAs Quantum Wells
Christopher Mittag, Matija Karalic, Zijin Lei +4
Nanostructures in InAs quantum wells have so far remained outside of the scope of traditional microfabrication techniques based on etching. This is due to parasitic parallel conduc…
Observation of fractional quantum Hall effect in an InAs quantum well
Meng K. Ma, Md. Shafayat Hossain, K. A. Villegas Rosales +4
The two-dimensional electron system in an InAs quantum well has emerged as a prime candidate for hosting exotic quasi-particles with non-Abelian statistics such as Majorana fermion…
Passivation of Edge States in Etched InAs Sidewalls
Christopher Mittag, Matija Karalic, Susanne Müller +6
We investigate different methods of passivating sidewalls of wet etched InAs heterostructures in order to suppress inherent edge conduction that is presumed to occur due to band be…
Edge transport in InAs and InAs/GaSb quantum wells
Susanne Mueller, Christopher Mittag, Thomas Tschirky +4
We investigate low-temperature transport through single InAs quantum wells and broken-gap InAs/GaSb double quantum wells. Non-local measurements in the regime beyond bulk pinch-off…
Lateral p-n Junction in an Inverted InAs/GaSb Double Quantum Well
Matija Karalic, Christopher Mittag, Thomas Tschirky +3
We present transport measurements on a lateral p-n junction in an inverted InAs/GaSb double quantum well at zero and nonzero perpendicular magnetic fields. At a zero magnetic field…
On the impact of strain on the electronic properties of InAs/GaSb quantum well systems
Lars Tiemann, Susanne Mueller, Quansheng Wu +6
Electron-hole hybridization in InAs/GaSb double quantum well structures leads to the formation of a mini band gap. We experimentally and theoretically studied the impact of strain…
Experimental Signatures of the Inverted Phase in InAs/GaSb Coupled Quantum Wells
Matija Karalic, Susanne Mueller, Christopher Mittag +8
Transport measurements are performed on InAs/GaSb double quantum wells at zero and finite magnetic fields applied parallel and perpendicular to the quantum wells. We investigate a…
Non-local transport via edge-states in InAs/GaSb coupled quantum wells
Susanne Mueller, Atindra Nath Pal, Matija Karalic +5
We have investigated low-temperature electronic transport on InAs/GaSb double quantum wells, a system which promises to be electrically tunable from a normal to a topological insul…
Influence of etching processes on electronic transport in mesoscopic InAs/GaSb quantum well devices
Atindra Nath Pal, Susanne Mueller, Thomas Ihn +4
We report the electronic characterization of mesoscopic Hall bar devices fabricated from coupled InAs/GaSb quantum wells sandwiched between AlSb barriers, an emerging candidate for…