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Role of the spin-orbit splitting and the dynamical fluctuations in the Si(557)-Au surface

Daniel Sanchez-Portal·Sampsa Riikonen·Richard M. MArtin
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Abstract

Our it ab initio calculations show that spin-orbit coupling is crucial to understand the electronic structure of the Si(557)-Au surface. The spin-orbit splitting produces the two one-dimensional bands observed in photoemission, which were previously attributed to spin-charge separation in a Luttinger liquid. This spin splitting might have relevance for future device applications. We also show that the apparent Peierls-like transition observed in this surface by scanning tunneling microscopy is a result of the dynamical fluctuations of the step-edge structure, which are quenched as the temperature is decreased.

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Daniel Sanchez-Portal, Sampsa Riikonen, Richard M. MArtin. 2005-10-10. Role of the spin-orbit splitting and the dynamical fluctuations in the Si(557)-Au surface. https://doi.org/10.1103/physrevlett.93.146803

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