Magnetic spectroscopy and characterization of La_0.65Pb_0.35MnO₃

Authors

M. I. Chipara, University of Nebraska-LincolnFollow
Shireen Adenwalla, University of Nebraska-LincolnFollow
Peter A. Dowben, University of Nebraska-LincolnFollow
Qin Lan Xu, University of Nebraska-Lincoln
Sy_Hwang Liou, University of Nebraska-LincolnFollow
R. Shoemaker, University of Nebraska-Lincoln

Date of this Version

5-1-2000

Comments

Published J. Appl. Phys. 87 (2000) 7124-7126. Permission to use.

Abstract

Crystalline films of La_0.65Pb_0.35MnO₃ grown on Si (100) substrates by rf sputtering have been investigated by ferromagnetic resonance and MOKE. The dependence of the ferromagnetic resonance line parameters on the sample orientation and temperature is investigated. An expression for the angular dependence of the resonance field on the orientation of the sample is proposed, based on the assumption that close to the Curie temperature the Zeeman and demagnetizing terms are dominant. MOKE data support this hypothesis. The temperature dependence of the magnetization at saturation, in relative units, estimated from ferromagnetic resonance agrees with SQUID data. ©2000 American Institute of Physics.