Magneto-Optical Effects and Electrical Resistivity of La0.8-xBixSr0.2MnO3 Films

Y. Yokoyama; K. Ando; M. Umeda; W. Zaets; T. Hirano; I. Solovyev; Y. Suzuki

doi:doi:10.1051/jp4:19971266

Issue		J. Phys. IV France Volume 07, Number C1, Mars 1997 7th INTERNATIONAL CONFERENCE ON FERRITES


Page(s)		C1-643 - C1-644
DOI		https://doi.org/10.1051/jp4:19971266

7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-643-C1-644
DOI: 10.1051/jp4:19971266

Magneto-Optical Effects and Electrical Resistivity of La_0.8-xBi_xSr_0.2MnO₃ Films

Y. Yokoyama¹, K. Ando¹, M. Umeda¹, W. Zaets¹, T. Hirano², I. Solovyev³ and Y. Suzuki³

¹ Electrotechnical Laboratory, Umezono, Tsukuba-shi, 305 Japan
² Meiji University, Higashimita, Tama-ku, Kawasaki-shi, 214 Japan
³ JRCAT-NAIR, Higashi, Tsukuba-shi, 305 Japan

Abstract
In La_0.8-x Bi_xSr_0.2MnO₃ films(x=0 ~ 0.3) prepared by a laser deposition technique, Magneto-Circular Dichroism (MCD) spectra between 1.5 to 6 eV and temperature dependence of resistivity were investigated. In the films without Bi, three optical transitions between 3 and 5 eV in MCD spectra are confirmed by the fitting. The Bi-doping makes shift these three transitions to higher energy and induces a new transition which shifts to lower energy by increasing of doping content. These transitions are ascribed to the charge transfer transitions from O2p to Mndγ(eg).