76 citations · 385 across the 15 of their papers we have counts for
15 papers
Pauli Blockade of Tunable Two-Electron Spin and Valley States in Graphene Quantum Dots
Chuyao Tong, Annika Kurzmann, Rebekka Garreis +9
Pauli blockade mechanisms -- whereby carrier transport through quantum dots is blocked due to selection rules even when energetically allowed -- are a direct manifestation of the P…
Kondo effect and spin-orbit coupling in graphene quantum dots
Annika Kurzmann, Yaakov Kleeorin, Chuyao Tong +12
The Kondo effect is a cornerstone in the study of strongly correlated fermions. The coherent exchange coupling of conduction electrons to local magnetic moments gives rise to a Kon…
Few-electron Single and Double Quantum Dots in an InAs Two-Dimensional Electron Gas
Christopher Mittag, Jonne V. Koski, Matija Karalic +8
Most proof-of-principle experiments for spin qubits have been performed using GaAs-based quantum dots because of the excellent control they offer over tunneling barriers and the or…
Gate-defined Quantum Point Contact in an InSb Two-dimensional Electron Gas
Zijin Lei, Christian A. Lehner, Erik Cheah +5
We investigate an electrostatically defined quantum point contact in a high-mobility InSb two-dimensional electron gas. Well-defined conductance plateaus are observed, and the subb…
Electronic g-factor and Magneto-transport in InSb Quantum Wells
Zijin Lei, Christian A. Lehner, Km Rubi +10
High mobility InSb quantum wells with tunable carrier densities are investigated by transport experiments in magnetic fields tilted with respect to the sample normal. We employ the…
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…
A Gate-Defined Quantum Point Contact in an InAs Two-Dimensional Electron Gas
Christopher Mittag, Matija Karalic, Zijin Lei +7
We experimentally study quantized conductance in an electrostatically defined constriction in a high-mobility InAs two-dimensional electron gas. A parallel magnetic field lifts the…
Quantum transport in high-quality shallow InSb quantum wells
Zijin Lei, Christian A. Lehner, Erik Cheah +7
InSb is one of the promising candidates to realize a topological state through proximity induced superconductivity in a material with strong spin-orbit interactions. In two-dimensi…
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…
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…
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…