Faculty Publications
Electronic And Magnetic Phase Transitions In (Sm0.65Sr0.35)Mno3 Induced By Temperature And Magnetic Field
Document Type
Article
Keywords
AC magnetic susceptibility, DC magnetization, Magnetoresistance, Manganese oxide
Journal/Book/Conference Title
Journal of Magnetism and Magnetic Materials
Volume
311
Issue
2
First Page
675
Last Page
682
Abstract
Temperature (4.2-260 K) and magnetic field (0-50 kOe) dependencies of the DC electrical resistance, DC magnetization, and AC magnetic susceptibility of (Sm0.65Sr0.35)MnO3 prepared from high purity components have been studied. (Sm0.65Sr0.35)MnO3 undergoes a temperature-induced transition between low-temperature ferromagnetic metallic and high-temperature paramagnetic insulating-like states. A magnetic field strongly affects this transition resulting in a metallic state and "colossal" magnetoresistance in the vicinity of the metal↔insulator transition. Magnetic and electric properties of (Sm0.65Sr0.35)MnO3 are different compared to those reported earlier for similar composition, which is attributable to the purity of the starting materials and/or different process of synthesis. The character of phase transformations observed in (Sm0.65Sr0.35)MnO3 is compared to that reported for Gd5(SixGe4-x) intermetallic alloys with a true first order phase transition. © 2006 Elsevier B.V. All rights reserved.
Department
Department of Physics
Original Publication Date
4-1-2007
DOI of published version
10.1016/j.jmmm.2006.08.033
Recommended Citation
Levin, E. M. and Shand, P. M., "Electronic And Magnetic Phase Transitions In (Sm0.65Sr0.35)Mno3 Induced By Temperature And Magnetic Field" (2007). Faculty Publications. 2630.
https://scholarworks.uni.edu/facpub/2630
