Electronic structure of doped La-Mn-O perovskites
Autor(en): | Demeter, M Neumann, M Galakhov, VR Oveckkina, NA Kurmaev, EZ Labachevskaya, NI |
Stichwörter: | LA1-XSRXMNO3; MAGNETORESISTANCE; PHOTOEMISSION; Physics; Physics, Multidisciplinary; SPECTROSCOPY | Erscheinungsdatum: | 2000 | Herausgeber: | POLISH ACAD SCIENCES INST PHYSICS | Journal: | ACTA PHYSICA POLONICA A | Volumen: | 98 | Ausgabe: | 5 | Startseite: | 587 | Seitenende: | 591 | Zusammenfassung: | The electronic structure of the doped perovskite manganese oxides La1-xSrxMnO3 and La1-xBaxMnO3 has been investigated by X-ray photoelectron and X-ray emission spectroscopy. By comparing the O Kh and Mn La X-ray emission spectra with the valence band X-ray photoelectron spectra we could localize the Mn 3d and O 2p states into the valence band. Our data are compared with previous band structure calculations. The value of the Mn 39 splitting does not change with Sr-doping in the concentration region from x = 0.0 till x = 0.3. This shows that the doping holes have mainly oxygen p character. The large value of the splitting indicates that the 3d electrons are in the high-spin state. |
Beschreibung: | International Conference on Condensed Matter Physics, JASZOWIEC, POLAND, MAY 17-20, 2000 |
ISSN: | 05874246 | DOI: | 10.12693/APhysPolA.98.587 |
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geprüft am 17.05.2024