Surface versus bulk Mott transition in Ca$_x$La$_{1-x}$VO$_3$

A. Liebsch

paper

Surface versus bulk Mott transition in Ca $_{x}$ La $_{1 - x}$ VO $_{3}$

arXiv:cond-mat/0301537

Abstract

The Mott insulator LaVO $_{3}$ is known to become metallic if La is replaced by small concentrations of Ca. Since surface quasi-particle spectra of various perovskites are more strongly correlated than their bulk spectra, the coexistence of a metallic bulk and an insulating surface layer might be feasible. To investigate this possibility the dynamical mean field theory is used to evaluate the quasi-particle spectra in the bulk and at the surface of Ca $_{x}$ La $_{1 - x}$ VO $_{3}$ for various Ca concentrations.

5 pages, 4 figures

Surface versus bulk Mott transition in Cax​La1−x​VO3​

Abstract

Surface versus bulk Mott transition in Ca $_{x}$ La $_{1 - x}$ VO $_{3}$