Ann. Phys. Fr.
Volume 20, Number 4, 1995
|Page(s)||445 - 455|
|Published online||01 June 2004|
Spin Glass Dynamics in Semimagnetic Semiconductors
Groupe de Physique des Solides, CNRS URA 17, Universités Paris 6 et Paris 7, Tour 23, 2 place Jussieu, 75251 Paris Cedex 05, France
Magnetooptic methods have been used to study the critical dynamics in concentrated compounds . The occurrence of a spin glass phase transition at finite has been characterized by the observation of the dynamic scaling laws: An unique scaling function with identical critical exponents whatever the Mn composition support the existence of universality among these spin glasses. The critical dynamic behavior is very similar to that found in insulating Ising spin systems.
© EDP Sciences, 1995