La induced Si3 trimer monolayer on Si(111) surface: an ab initio study

The π -bond Seiwatz chain (SC) is one of the well-known reconstruction induced by alkaline or rare earth metals on Si(111) surface. Here we identify by ab initio calculations a new reconstruction of La induced quasi-two-dimensional Si _3 trimer monolayer on Si(111)- $(\sqrt{3}\times \sqrt{3})R30{}^{...

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