Explanation of the similarity of the experimental photoemission spectra of SrVO3 and CaVO3

Details Explanation of the similarity of the experimental photoemission spectra of SrVO3 and CaVO3 Explanation of the similarity of the experimental photoemission spectra of SrVO3 and CaVO3

2002-11-22

arxiv.org/abs/cond-mat/0211508v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures. Supercedes cond-mat/0312429

Scientific paper

We present parameter-free LDA+DMFT results for the many-particle density of states of cubic SrVO3 and orthorhombic CaVO3. Both systems are found to be strongly correlated metals, but em not on the verge of a metal-insulator transition. In spite of the considerably smaller V-O-V bonding angle in CaVO3 the photoemission spectra of the two systems are very similar, their quasiparticle parts being almost identical. This is in contrast to earlier theoretical and experimental conclusions, but in agreement with recent bulk-sensitive photoemission experiments.

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