Spin-orbit splitting of the Shockley surface state on Cu(111)

A. Tamai; W. Meevasana; P. D. C. King; C. W. Nicholson; A. de la Torre; E. Rozbicki; F. Baumberger

doi:10.1103/PhysRevB.87.075113

Spin-orbit splitting of the Shockley surface state on Cu(111)

A. Tamai^*, W. Meevasana, P. D. C. King, C. W. Nicholson, A. de la Torre, E. Rozbicki, F. Baumberger

^*Corresponding author for this work

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

Abstract

We present angle-resolved photoemission data from Cu(111). Using a focused 6 eV continuous-wave laser for photoexcitation, we achieve a high effective momentum resolution, enabling detection of the Rashba spin splitting in the Shockley surface state on Cu(111). The magnitude of the spin splitting of Delta k similar to 0.006 angstrom(-1) is surprisingly large and exceeds values predicted for the analogous surface state on Ag(111), but is reproduced by first-principles calculations. We further resolve a kink in the dispersion, which we attribute to electron-phonon coupling.

Original language	English
Article number	075113
Number of pages	5
Journal	Physical Review. B, Condensed matter and materials physics
Volume	87
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.87.075113
Publication status	Published - 13 Feb 2013

Keywords

HIGH-RESOLUTION PHOTOEMISSION
2-DIMENSIONAL ELECTRON-GAS
CONFINEMENT
SRTIO3

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10.1103/PhysRevB.87.075113

Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems
Wahl, P. (PI), Baumberger, F. (CoI), Davis, J. C. (CoI), Green, A. (CoI), Hooley, C. (CoI), Keeling, J. M. J. (CoI) & Mackenzie, A. (CoI)
EPSRC
1/09/11 → 31/08/17
Project: Standard

Cite this

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title = "Spin-orbit splitting of the Shockley surface state on Cu(111)",

abstract = "We present angle-resolved photoemission data from Cu(111). Using a focused 6 eV continuous-wave laser for photoexcitation, we achieve a high effective momentum resolution, enabling detection of the Rashba spin splitting in the Shockley surface state on Cu(111). The magnitude of the spin splitting of Delta k similar to 0.006 angstrom(-1) is surprisingly large and exceeds values predicted for the analogous surface state on Ag(111), but is reproduced by first-principles calculations. We further resolve a kink in the dispersion, which we attribute to electron-phonon coupling.",

keywords = "HIGH-RESOLUTION PHOTOEMISSION, 2-DIMENSIONAL ELECTRON-GAS, CONFINEMENT, SRTIO3",

author = "A. Tamai and W. Meevasana and King, {P. D. C.} and Nicholson, {C. W.} and {de la Torre}, A. and E. Rozbicki and F. Baumberger",

year = "2013",

month = feb,

day = "13",

doi = "10.1103/PhysRevB.87.075113",

language = "English",

volume = "87",

journal = "Physical Review. B, Condensed matter and materials physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "7",

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TY - JOUR

T1 - Spin-orbit splitting of the Shockley surface state on Cu(111)

AU - Tamai, A.

AU - Meevasana, W.

AU - King, P. D. C.

AU - Nicholson, C. W.

AU - de la Torre, A.

AU - Rozbicki, E.

AU - Baumberger, F.

PY - 2013/2/13

Y1 - 2013/2/13

N2 - We present angle-resolved photoemission data from Cu(111). Using a focused 6 eV continuous-wave laser for photoexcitation, we achieve a high effective momentum resolution, enabling detection of the Rashba spin splitting in the Shockley surface state on Cu(111). The magnitude of the spin splitting of Delta k similar to 0.006 angstrom(-1) is surprisingly large and exceeds values predicted for the analogous surface state on Ag(111), but is reproduced by first-principles calculations. We further resolve a kink in the dispersion, which we attribute to electron-phonon coupling.

AB - We present angle-resolved photoemission data from Cu(111). Using a focused 6 eV continuous-wave laser for photoexcitation, we achieve a high effective momentum resolution, enabling detection of the Rashba spin splitting in the Shockley surface state on Cu(111). The magnitude of the spin splitting of Delta k similar to 0.006 angstrom(-1) is surprisingly large and exceeds values predicted for the analogous surface state on Ag(111), but is reproduced by first-principles calculations. We further resolve a kink in the dispersion, which we attribute to electron-phonon coupling.

KW - HIGH-RESOLUTION PHOTOEMISSION

KW - 2-DIMENSIONAL ELECTRON-GAS

KW - CONFINEMENT

KW - SRTIO3

U2 - 10.1103/PhysRevB.87.075113

DO - 10.1103/PhysRevB.87.075113

M3 - Article

SN - 1098-0121

VL - 87

JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

IS - 7

M1 - 075113

ER -

Spin-orbit splitting of the Shockley surface state on Cu(111)

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Keywords

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Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

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