Topological phase transition in bulk materials described by the coherent potential approximation technique
Chadov S, Kiss J, Kuebler J, Felser C (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 7
Pages Range: 82-89
Journal Issue: 1-2
Abstract
We consider the analogy between the topological phase transition which occurs on a surface of a non-trivial insulator as a function of spatial coordinate, and the phase transition occurring in the bulk due to the change of internal parameters (such as crystal field and spin-orbit coupling). In both cases the system exhibits a Dirac cone, which is the universal manifestation of a topological phase transition, independent of the type of the driving parameters. In particular, this leads to a simple way of determining the topological class - based solely on the bulk information - even for systems where the translational symmetry is broken by atomic disorder or by strong electron correlations. Here we demonstrate this idea, using as an example the zinc-blende related semiconductors by means of ab-initio fully-relativistic band structure calculations, involving the technique of coherent potential approximation (CPA). © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Involved external institutions
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
How to cite
APA:
Chadov, S., Kiss, J., Kuebler, J., & Felser, C. (2013). Topological phase transition in bulk materials described by the coherent potential approximation technique. Physica Status Solidi-Rapid Research Letters, 7(1-2), 82-89. https://doi.org/10.1002/pssr.201206395
MLA:
Chadov, Stanislav, et al. "Topological phase transition in bulk materials described by the coherent potential approximation technique." Physica Status Solidi-Rapid Research Letters 7.1-2 (2013): 82-89.
BibTeX: Download