Sekiyama A, Fujiwara H, Imada S, Suga S, Eisaki H, Uchida S I, Takegahara K, Harima H, Saitoh Y, Nekrasov I A, Keller G, Kondakov D E, Kozhevnikov A V, Pruschke Th, Held K, Vollhardt D, Anisimov V I
Department of Material Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
Phys Rev Lett. 2004 Oct 8;93(15):156402. doi: 10.1103/PhysRevLett.93.156402. Epub 2004 Oct 5.
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 3d(1) 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.