Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Reinvestigation of the giant Rashba-split states on Bi-covered Si(111)
KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics.
KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics.
KTH, School of Engineering Sciences (SCI), Applied Physics, Materials and Nanophysics.
2018 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 97, no 12, article id 125148Article in journal (Refereed) Published
Abstract [en]

We study the electronic and spin structures of the giant Rashba-split surface states of the Bi/Si(111)-(root 3 x root 3)R30 degrees trimer phase by means of spin- and angle-resolved photoelectron spectroscopy (spin-ARPES). Supported by tight-binding calculations of the surface state dispersion and spin orientation, our findings show that the spin experiences a vortexlike structure around the (Gamma) over bar point of the surface Brillouin zone-in accordance with the standard Rashba model. Moreover, we find no evidence of a spin vortex around the (K) over bar point in the hexagonal Brillouin zone and thus no peculiar Rashba split around this point, something that has been suggested by previous works. Rather the opposite, our results show that the spin structure around (K) over bar can be fully understood by taking into account the symmetry of the Brillouin zone and the intersection of spin vortices centered around the (Gamma) over bar points in neighboring Brillouin zones. As a result, the spin structure is consistently explained within the standard framework of the Rashba model although the spin-polarized surface states experience a more complex dispersion compared to free-electron-like parabolic states.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2018. Vol. 97, no 12, article id 125148
National Category
Theoretical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-228159DOI: 10.1103/PhysRevB.97.125148ISI: 000428239700009Scopus ID: 2-s2.0-85044457710OAI: oai:DiVA.org:kth-228159DiVA, id: diva2:1209282
Note

QC 20180522

Available from: 2018-05-22 Created: 2018-05-22 Last updated: 2018-05-22Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Hårdensson Berntsen, MagnusGötberg, OlofTjernberg, Oscar
By organisation
Materials and Nanophysics
In the same journal
Physical Review B
Theoretical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 138 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf