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

Authors
Meevasana, W.
King, P. D. C.
Nicholson, C. W.
Rozbicki, E.
Published in Physical Review. B, Condensed Matter. 2013, vol. 87, no. 07, p. 075113
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 Δk∼0.006 Å−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.
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TAMAI, Anna et al. Spin-orbit splitting of the Shockley surface state on Cu(111). In: Physical Review. B, Condensed Matter, 2013, vol. 87, n° 07, p. 075113. https://archive-ouverte.unige.ch/unige:42079

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Deposited on : 2014-11-21

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