학술논문

Spin-glass like features in cluster-glass compounds La1??Mn0.7Fe0.3O3.
Document Type
Article
Author
Source
Journal of Physics D: Applied Physics. Dec2007, Vol. 40 Issue 24, p7614-7619. 6p.
Subject
*FERROMAGNETISM
*MAGNETISM
*MAGNETIZATION
*GLASS transition temperature
Language
ISSN
0022-3727
Abstract
The static and dynamic features of magnetization are investigated using dc magnetization and ac susceptibility measurements on La1[?]dMn0.7Fe0.3O3 for d = 0 and 0.13. The results indicate that short range ferromagnetic clusters coexist with the glassy magnetic state. The analysis on the frequency dependence of spin freezing temperature (Tf) using the Vogel-Fulcher law and the dynamical scaling behaviour near Tf indicates that the spin freezing temperature behaves like a spin-glass transition temperature for both the compounds. The cluster-glass states of both the compounds exhibit similar characteristic features. [ABSTRACT FROM AUTHOR]