|
|||||
|
|
XPS and XAS spectra of CaMnO3 and LaMnO3 |
|
| Authors: | G Zampieri M Abbate F Prado A Caneiro E Morikawa |
| Institution: | a Centro Atómico Bariloche and Instituto Balseiro, Comisión Nacional de Energía Atómica and Universidad Nacional de Cuyo, Rio Negro 8400 S.C. de, Bariloche, Argentina b Consejo Nacional de Investigaciones Científicas y, Técnicas, Argentina c Departamento de Fisica, Universidad Federal de Parana, Curitiba, Brazil d Center for Advanced Microstructures and Devices, Louisiana State University, Louisiana, USA |
| Abstract: | We have analyzed the XPS Mn 2p and XAS O 1s spectra of CaMnO3 and LaMnO3 with the configuration-interaction cluster model. Both the Hund exchange energy J and the crystal-field splitting of the d levels are included explicitly in the fittings. We have obtained very good agreement between calculated and measured spectra. The parameters U, Δ, and pdσ are compared with those obtained in previous works. The exchange and crystal-field parameters are compared with parameters derived from density-functional band-structure calculations. |
| Keywords: | Transition metals and alloys Electron spectroscopies Manganites |
| 本文献已被 ScienceDirect 等数据库收录！ | |