Andreev spectroscopy of doped HgTe quantum wells
arXiv:1005.1055 · doi:10.1103/PhysRevB.82.115312
Abstract
We investigate the Andreev reflection process in high-mobility HgTe/CdTe quantum wells. We find that Andreev conductance probes the dynamics of massive 2+1 Dirac fermions, and that both specular Andreev reflection and retroreflection can be realized even in presence of a large mismatch between the Fermi wavelengths at the two sides of the normal/superconducting junction.
7 pages, 6 figures
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Cited by in corpus (13)
- Topological insulators and superconductors
- Spin-helical transport in normal and superconducting topological insulators
- Proposal for an all-electrical measurement of crossed Andreev reflection in topological insulators
- Quantum Andreev effect in 2D HgTe/CdTe quantum well-superconductor systems
- Enhancement of crossed Andreev reflection in normal-superconductor-normal junction of thin topological insulator
- Edge states of a three-dimensional topological insulator
- Transport across a junction of topological insulators and a superconductor
- Chiral Majorana edge states in HgTe quantum wells
- Spin Hall effect at interfaces between HgTe/CdTe quantum wells and metals
- Confining electrons on a topological insulator surface using potentials and a magnetic field
- Robust Fabry-Perot interference in dual-gated BiSe devices
- Bulk transport through superconducting hybrid structures in HgTe quantum wells
- Interplay between evanescent scattering modes and finite dispersion in superconducting junctions