XPS and XAS spectra of CaMnO3 and LaMnO3

G. ZAMPIERI; M. ABBATE; F. PRADO; A CANEIRO; E. MORIKAWA

PHYSICA B - CONDENSED MATTER

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2002 vol. 320 p. 51 - 55

0921-4526

We have analyzed the XPS Mn2p and XAS O1s spectra of CaMnO3 and LaMnO3 with the configuration-interactioncluster model. Both the Hund exchange energy J and the crystal-field splitting of the d levels are included explicitly inthe fittings. We have obtained very good agreement between calculated and measured spectra. The parameters U; D;and pds are compared with those obtained in previous works. The exchange and crystal-field parameters are comparedwith parameters derived from density-functional band-structure calculations. r 2002 Elsevier Science B.V. All rightsreserved.