Handle URI:
http://hdl.handle.net/10754/600037
Title:
Topological surface states scattering in antimony
Authors:
Narayan, Awadhesh; Rungger, Ivan; Sanvito, Stefano
Abstract:
In this work we study the topologically protected states of the Sb(111) surface by using ab initio transport theory. In the presence of a strong surface perturbation we obtain standing-wave states resulting from the superposition of spin-polarized surface states. By Fourier analysis, we identify the underlying two dimensional scattering processes and the spin texture. We find evidence of resonant transmission across surface barriers at quantum well state energies and evaluate their lifetimes. Our results are in excellent agreement with experimental findings. We also show that despite the presence of a step edge along a different high-symmetry direction, the surface states exhibit unperturbed transmission around the Fermi energy for states with near to normal incidence. © 2012 American Physical Society.
Citation:
Narayan A, Rungger I, Sanvito S (2012) Topological surface states scattering in antimony. Physical Review B 86. Available: http://dx.doi.org/10.1103/PhysRevB.86.201402.
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
5-Nov-2012
DOI:
10.1103/PhysRevB.86.201402
Type:
Article
ISSN:
1098-0121; 1550-235X
Sponsors:
This work is financially supported by the Irish Research Council for Science, Engineering and Technology (RCSET) under the EMBARK initiative. Computational resources have been provided by the Trinity Centre for High Performance Computing (TCHPC). I.R. and S.S. acknowledge additional financial support by KAUST (ACRAB project). The authors would like to thank Anna Pertsova for illuminating discussions.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorNarayan, Awadheshen
dc.contributor.authorRungger, Ivanen
dc.contributor.authorSanvito, Stefanoen
dc.date.accessioned2016-02-28T06:34:48Zen
dc.date.available2016-02-28T06:34:48Zen
dc.date.issued2012-11-05en
dc.identifier.citationNarayan A, Rungger I, Sanvito S (2012) Topological surface states scattering in antimony. Physical Review B 86. Available: http://dx.doi.org/10.1103/PhysRevB.86.201402.en
dc.identifier.issn1098-0121en
dc.identifier.issn1550-235Xen
dc.identifier.doi10.1103/PhysRevB.86.201402en
dc.identifier.urihttp://hdl.handle.net/10754/600037en
dc.description.abstractIn this work we study the topologically protected states of the Sb(111) surface by using ab initio transport theory. In the presence of a strong surface perturbation we obtain standing-wave states resulting from the superposition of spin-polarized surface states. By Fourier analysis, we identify the underlying two dimensional scattering processes and the spin texture. We find evidence of resonant transmission across surface barriers at quantum well state energies and evaluate their lifetimes. Our results are in excellent agreement with experimental findings. We also show that despite the presence of a step edge along a different high-symmetry direction, the surface states exhibit unperturbed transmission around the Fermi energy for states with near to normal incidence. © 2012 American Physical Society.en
dc.description.sponsorshipThis work is financially supported by the Irish Research Council for Science, Engineering and Technology (RCSET) under the EMBARK initiative. Computational resources have been provided by the Trinity Centre for High Performance Computing (TCHPC). I.R. and S.S. acknowledge additional financial support by KAUST (ACRAB project). The authors would like to thank Anna Pertsova for illuminating discussions.en
dc.publisherAmerican Physical Society (APS)en
dc.titleTopological surface states scattering in antimonyen
dc.typeArticleen
dc.identifier.journalPhysical Review Ben
dc.contributor.institutionTrinity College Dublin, Dublin, Irelanden
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