Understanding the bulk electronic structure of Ca1-xSrxVO3
Kalobaran Maiti, U. Manju, Sugata Ray, Priya Mahadevan, I. H. Inoue, C. Carbone, D. D. Sarma
Abstract
We investigate the electronic structure of Ca1-xSrxVO3 using careful state-of-the-art experiments and calculations. Photoemission spectra using synchrotron radiation reveal a hitherto unnoticed polarization dependence of the photoemission matrix elements for the surface component leading to a substantial suppression of its intensity. Bulk spectra extracted with the help of experimentally determined electron escape depth and estimated suppression of surface contributions resolve outstanding puzzles concerning the electronic structure in Ca1-xSrxVO3.
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