Magnetoabsorption in InSb quantum-well heterostructures

Comparative analysis of hole transport in compressively strained InSb and Ge quantum well heterostructures

Gate-tunable high mobility remote-doped InSb/In1−xAlxSb quantum well heterostructures

Optimizing spin-orbit splittings in InSb Majorana nanowires

Semiconductor-superconductor heterostructures represent a promising platform for the detection of Majorana zero modes and subsequently the processing of quantum information using their exotic non-Abelian statistics. Theoretical modeling of such low-dimensional heterostructures is generally based on phenomenological effective models. However, a more microscopic understanding of the band structur...

Cyclotron resonance in HgTe/CdTe-based heterostructures in high magnetic fields

: Cyclotron resonance study of HgTe/CdTe-based quantum wells with both inverted and normal band structures in quantizing magnetic fields was performed. In semimetallic HgTe quantum wells with inverted band structure, a hole cyclotron resonance line was observed for the first time. In the samples with normal band structure, interband transitions were observed with wide line width due to quantum ...

Zero-field spin splitting and spin-dependent broadening in high-mobility InSb ÕIn1−xAlxSb asymmetric quantum well heterostructures

We present high-field magnetotransport data from a range of 30-nm-wide InSb/InAlSb quantum wells with room-temperature mobilities in excess of 6 m2 V−1 s−1. Samples with the narrowest Landau level broadening exhibit beating patterns in the magnetoresistance attributed to zero-field spin splitting. Rashba parameters are extracted from a range of samples and gate biases using the difference in sp...