NDLI: Signatures of non-trivial band topology in LaAs/LaBi heterostructure

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Signatures of non-trivial band topology in LaAs/LaBi heterostructure

Content Provider	Scilit
Author	Wadhwa, Payal Kumar, T. J. Dhilip Shukla, Alok Kumar, Rakesh
Copyright Year	2020
Description	Journal: Journal of Physics: Condensed Matter In this article, we investigate non-trivial topological features in a heterostructure of extreme magnetoresistance (XMR) materials LaAs and LaBi using density functional theory (DFT). The proposed heterostructure is found to be dynamically stable and shows bulk band inversion with non-trivial Z$_{2}$ topological invariant and a Dirac cone at the surface. In addition, its electron and hole carrier densities ratio is also calculated to investigate the possibility to possess XMR effect. Electrons and holes in the heterostructure are found to be nearly compensated, thereby facilitating it to be a suitable candidate for XMR studies.
Related Links	https://iopscience.iop.org/article/10.1088/1361-648X/ab97e2/pdf
ISSN	09538984
e-ISSN	1361648X
DOI	10.1088/1361-648x/ab97e2
Journal	Journal of Physics: Condensed Matter
Issue Number	39
Volume Number	32
Language	English
Publisher	IOP Publishing
Publisher Date	2020-05-29
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics: Condensed Matter Condensed Matter Physics Density Functional Theory First-principles Calculations Topological Materials
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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