137 citations · 368 across the 9 of their papers we have counts for
8 papers · 1 filter
Density dependence of the excitation gaps in an undoped Si/SiGe double-quantum-well heterostructure
D. Chen, S. Cai, N. -W. Hsu +7
We report low-temperature magneto-transport measurements of an undoped Si/SiGe asymmetric double quantum well heterostructure. The density in both layers is tuned independently uti…
Broadband microwave spectroscopy of semiconductor nanowire-based Cooper-pair transistors
Alex Proutski, Dominique Laroche, Bas van 't Hooft +4
The Cooper-pair transistor (CPT), a small superconducting island enclosed between two Josephson weak links, is the atomic building block of various superconducting quantum circuits…
Observation of the 4-periodic Josephson effect in indium arsenide nanowires
Dominique Laroche, Daniël Bouman, David J. van Woerkom +9
Quantum computation by non-Abelian Majorana zero modes (MZMs) offers an approach to achieve fault tolerance by encoding quantum information in the non-local charge parity states of…
Density-controlled quantum Hall ferromagnetic transition in a two-dimensional hole system
T. M. Lu, L. A. Tracy, D. Laroche +5
Quantum Hall ferromagnetic transitions are typically achieved by increasing the Zeeman energy through in-situ sample rotation, while transitions in systems with pseudo-spin indices…
Mechanical Flip-Chip for Ultra-High Electron Mobility Devices
K. Bennaceur, B. A. Schmidt, S. Gaucher +6
Electrostatic gates are of paramount importance for the physics of devices based on high-mobility two-dimensional electron gas (2DEG) since they allow depletion of electrons in sel…
1D-1D Coulomb Drag Signature of a Luttinger Liquid
D. Laroche, G. Gervais, M. P. Lilly +1
We report Coulomb drag measurements between vertically-integrated quantum wires separated by a barrier only 15 nm wide. The temperature dependence of the drag resistance is measure…
Positive and negative Coulomb drag in vertically integrated one-dimensional quantum wires
D. Laroche, G. Gervais, M. P. Lilly +1
Electron interactions in and between wires become increasingly complex and important as circuits are scaled to nanometre sizes, or employ reduced-dimensional conductors like carbon…
Scattering Mechanism in Modulation-Doped Shallow Two-Dimensional Electron Gases
D. Laroche, S. Das Sarma, G. Gervais +2
We report on a systematic investigation of the dominant scattering mechanism in shallow two-dimensional electron gases (2DEGs) formed in modulation-doped GaAs/Al_{x}Ga_{1-x}As hete…