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Scientific article
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English

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

Publication date2013
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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Citation (ISO format)
TAMAI, Anna et al. Spin-orbit splitting of the Shockley surface state on Cu(111). In: Physical review. B, Condensed matter and materials physics, 2013, vol. 87, n° 07, p. 075113. doi: 10.1103/PhysRevB.87.075113
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ISSN of the journal1098-0121
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