Rashba splitting and dichroism of surface states in Bi/Ag surface alloy

Guang Bian; T. Miller; T. C. Chiang

doi:10.1016/j.elspec.2014.10.003

Rashba splitting and dichroism of surface states in Bi/Ag surface alloy

Guang Bian, T. Miller, T. C. Chiang

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

6 Scopus citations

Abstract

The Rashba effect plays an important role in various spin-related phenomena in two-dimensional electronic systems. In this work we present a theoretical analysis of the Rashba effect both analytically and numerically for the prototypical Rashba system Bi/Ag surface alloy, which shows a giant Rashba spin splitting. The results reveal the critical influence of atomic spin-orbit coupling and structural inversion asymmetry. In addition, we demonstrate a theoretical route to interpret the prominent circular dichroic patterns observed by angle-resolved photoemission spectroscopy in this system. The results reveal a close connection between the experimentally observed dichroic patterns and the Rashba spin texture.

Original language	English
Pages (from-to)	36-41
Number of pages	6
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	201
DOIs	https://doi.org/10.1016/j.elspec.2014.10.003
State	Published - May 1 2015
Externally published	Yes

Funding

This work is supported by the U.S. Department of Energy (grant DE-FG02-07ER46383 ). The Synchrotron Radiation Center, where the photoemission data were taken, was funded by the University of Wisconsin-Madison . We acknowledge the U.S. National Science Foundation (grant DMR-09-06444 and 13-05583 ) for partial support of beamline operations.

Funders	Funder number
National Science Foundation	DMR-09-06444, 1305583
U.S. Department of Energy	DE-FG02-07ER46383
University of Wisconsin-Madison

Keywords

ARPES
Bi/Ag surface alloy
Circular dichroism
Rashba effect

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10.1016/j.elspec.2014.10.003

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title = "Rashba splitting and dichroism of surface states in Bi/Ag surface alloy",

abstract = "The Rashba effect plays an important role in various spin-related phenomena in two-dimensional electronic systems. In this work we present a theoretical analysis of the Rashba effect both analytically and numerically for the prototypical Rashba system Bi/Ag surface alloy, which shows a giant Rashba spin splitting. The results reveal the critical influence of atomic spin-orbit coupling and structural inversion asymmetry. In addition, we demonstrate a theoretical route to interpret the prominent circular dichroic patterns observed by angle-resolved photoemission spectroscopy in this system. The results reveal a close connection between the experimentally observed dichroic patterns and the Rashba spin texture.",

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T1 - Rashba splitting and dichroism of surface states in Bi/Ag surface alloy

AU - Bian, Guang

AU - Miller, T.

AU - Chiang, T. C.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - The Rashba effect plays an important role in various spin-related phenomena in two-dimensional electronic systems. In this work we present a theoretical analysis of the Rashba effect both analytically and numerically for the prototypical Rashba system Bi/Ag surface alloy, which shows a giant Rashba spin splitting. The results reveal the critical influence of atomic spin-orbit coupling and structural inversion asymmetry. In addition, we demonstrate a theoretical route to interpret the prominent circular dichroic patterns observed by angle-resolved photoemission spectroscopy in this system. The results reveal a close connection between the experimentally observed dichroic patterns and the Rashba spin texture.

AB - The Rashba effect plays an important role in various spin-related phenomena in two-dimensional electronic systems. In this work we present a theoretical analysis of the Rashba effect both analytically and numerically for the prototypical Rashba system Bi/Ag surface alloy, which shows a giant Rashba spin splitting. The results reveal the critical influence of atomic spin-orbit coupling and structural inversion asymmetry. In addition, we demonstrate a theoretical route to interpret the prominent circular dichroic patterns observed by angle-resolved photoemission spectroscopy in this system. The results reveal a close connection between the experimentally observed dichroic patterns and the Rashba spin texture.

KW - ARPES

KW - Bi/Ag surface alloy

KW - Circular dichroism

KW - Rashba effect

UR - http://www.scopus.com/inward/record.url?scp=84939945553&partnerID=8YFLogxK

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DO - 10.1016/j.elspec.2014.10.003

M3 - Article

AN - SCOPUS:84939945553

SN - 0368-2048

VL - 201

SP - 36

EP - 41

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

ER -

Rashba splitting and dichroism of surface states in Bi/Ag surface alloy

Abstract

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Keywords

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