Quantum interference in HgTe structures
arXiv:1408.5759 · doi:10.1002/pssb.201350309
Abstract
We study quantum transport in HgTe/HgCdTe quantum wells under the condition that the chemical potential is located outside of the bandgap. We first analyze symmetry properties of the effective Bernevig-Hughes-Zhang Hamiltonian and the relevant symmetry-breaking perturbations. Based on this analysis, we overview possible patterns of symmetry breaking that govern the quantum interference (weak localization or weak antilocalization) correction to the conductivity in two dimensional HgTe/HgCdTe samples. Further, we perform a microscopic calculation of the quantum correction beyond the diffusion approximation. Finally, the interference correction and the low-field magnetoresistance in a quasi-one-dimensional geometry are analyzed.
15 pages, 6 figures; feature article (topical review) for a special issue "Semiconductor Spintronics" (DFG-SPP 1285) of Physica Status Solidi B: Basic Solid State Physics; partly overviews PRB 86, 125323 (2012) and PRB 90, 085401 (2014) (arXiv:1207.4102 and arXiv:1402.7097, respectively)
References in corpus (13)
- Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
- Quantum Spin Hall Insulator State in HgTe Quantum Wells
- Topological Insulators with Inversion Symmetry
- A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
- Weak localisation magnetoresistance and valley symmetry in graphene
- Nonlocal edge state transport in the quantum spin Hall state
- The Quantum Spin Hall Effect: Theory and Experiment
- Quantum Spin Hall Effect in Inverted Type II Semiconductors
- Electron transport in disordered graphene
- Effect of Disorder on Transport in Graphene
- Weak Localization and Antilocalization in Topological Insulator Thin Films with Coherent Bulk-Surface Coupling
- Weak antilocalization in HgTe quantum well with inverted energy spectrum
- Probing the Band Topology of Mercury Telluride through Weak Localization and Antilocalization