Rashba effect of bismuth thin film on silicon studied by spin-resolved ARPES

A. Takayama; T. Sato; S. Souma; T. Takahashi

doi:10.1016/j.elspec.2014.11.002

Rashba effect of bismuth thin film on silicon studied by spin-resolved ARPES

A. Takayama^*, T. Sato, S. Souma, T. Takahashi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We report high-resolution spin- and angle-resolved photoemission spectroscopy of bismuth thin film on Si(1 1 1) to discuss the spin structure of surface states. We found that, unlike conventional picture of the Rashba splitting, the magnitude of the in-plane spin polarization is asymmetric between two hole pockets across the Brillouin-zone center. In addition, these pockets exhibit a giant out-of-plane spin polarization as large as the in-plane counterpart, which changes the sign across the Γ¯.

Original language	English
Pages (from-to)	105-109
Number of pages	5
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	201
DOIs	https://doi.org/10.1016/j.elspec.2014.11.002
Publication status	Published - 2015 May 1
Externally published	Yes

Keywords

Bismuth
Rashba effect
Spin-orbit coupling
Spin-resolved ARPES
Thin film

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/j.elspec.2014.11.002

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title = "Rashba effect of bismuth thin film on silicon studied by spin-resolved ARPES",

abstract = "We report high-resolution spin- and angle-resolved photoemission spectroscopy of bismuth thin film on Si(1 1 1) to discuss the spin structure of surface states. We found that, unlike conventional picture of the Rashba splitting, the magnitude of the in-plane spin polarization is asymmetric between two hole pockets across the Brillouin-zone center. In addition, these pockets exhibit a giant out-of-plane spin polarization as large as the in-plane counterpart, which changes the sign across the Γ¯.",

keywords = "Bismuth, Rashba effect, Spin-orbit coupling, Spin-resolved ARPES, Thin film",

author = "A. Takayama and T. Sato and S. Souma and T. Takahashi",

year = "2015",

month = may,

day = "1",

doi = "10.1016/j.elspec.2014.11.002",

language = "English",

volume = "201",

pages = "105--109",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier",

}

TY - JOUR

T1 - Rashba effect of bismuth thin film on silicon studied by spin-resolved ARPES

AU - Takayama, A.

AU - Sato, T.

AU - Souma, S.

AU - Takahashi, T.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - We report high-resolution spin- and angle-resolved photoemission spectroscopy of bismuth thin film on Si(1 1 1) to discuss the spin structure of surface states. We found that, unlike conventional picture of the Rashba splitting, the magnitude of the in-plane spin polarization is asymmetric between two hole pockets across the Brillouin-zone center. In addition, these pockets exhibit a giant out-of-plane spin polarization as large as the in-plane counterpart, which changes the sign across the Γ¯.

AB - We report high-resolution spin- and angle-resolved photoemission spectroscopy of bismuth thin film on Si(1 1 1) to discuss the spin structure of surface states. We found that, unlike conventional picture of the Rashba splitting, the magnitude of the in-plane spin polarization is asymmetric between two hole pockets across the Brillouin-zone center. In addition, these pockets exhibit a giant out-of-plane spin polarization as large as the in-plane counterpart, which changes the sign across the Γ¯.

KW - Bismuth

KW - Rashba effect

KW - Spin-orbit coupling

KW - Spin-resolved ARPES

KW - Thin film

UR - http://www.scopus.com/inward/record.url?scp=84929310766&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929310766&partnerID=8YFLogxK

U2 - 10.1016/j.elspec.2014.11.002

DO - 10.1016/j.elspec.2014.11.002

M3 - Article

AN - SCOPUS:84929310766

SN - 0368-2048

VL - 201

SP - 105

EP - 109

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

ER -

Rashba effect of bismuth thin film on silicon studied by spin-resolved ARPES

Abstract

Keywords

ASJC Scopus subject areas

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