Role of Spin-Orbit Splitting and Dynamical Fluctuations in the Si(557)-Au Surface
Role of Spin-Orbit Splitting and Dynamical Fluctuations in the Si(557)-Au Surface
Our 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 …