Mutual Experimental and Theoretical Validation of Bulk Photoemission Spectra of Sr1-xCaxVO3
A. Sekiyama, H. Fujiwara, S. Imada, S. Suga, H. Eisaki, S. I. Uchida,, K. Takegahara, H. Harima, Y. Saitoh, I. A. Nekrasov, G. Keller, D. E., Kondakov, A. V. Kozhevnikov, Th. Pruschke, K. Held, D. Vollhardt, V. I., Anishimov
TL;DR
This study combines experimental high-energy photoemission spectra with theoretical LDA+DMFT calculations to validate the bulk spectra of Sr1-xCaxVO3, showing insensitivity to calcium substitution and confirming the spectra's bulk sensitivity.
Contribution
It provides the first combined experimental and theoretical validation of bulk photoemission spectra in Sr1-xCaxVO3, demonstrating the spectra's insensitivity to calcium content.
Findings
Bulk spectra are insensitive to x in Sr1-xCaxVO3.
High agreement between experiment and LDA+DMFT theory.
Confirms the bulk-sensitivity of high-energy photoemission spectra.
Abstract
We report high-resolution high-energy photoemission spectra together with parameter-free LDA+DMFT (local density approximation + dynamical mean-field theory) results for Sr1-xCaxVO3, a prototype 3d1 system. In contrast to earlier investigations the bulk spectra are found to be insensitive to x. The good agreement between experiment and theory confirms the bulk-sensitivity of the high-energy photoemission spectra.
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