Origin of Spin-Glass Behavior of Zn1 − xMn xO.

Authors :: Kolesnik, S.
Dabrowski, B.
Mais, J.
Source :: Journal of Superconductivity; Aug2002, Vol. 15 Issue 4, p251-255, 5p
Publication Year :: 2002
Abstract: Alternating current susceptibility has been studied for polycrystalline Zn<subscript>1 − x</subscript>Mn<subscript> x</subscript>O. Stoichiometric samples demonstrate Curie–Weiss behavior, which indicates mostly antiferromagnetic interactions. Magnetic susceptibility can be described by a diluted Heisenberg magnet model developed for semimagnetic semiconductors. High-pressure oxygen annealing induces spin-glass like behavior in Zn<subscript>1 − x</subscript>Mn<subscript> x</subscript>O by precipitation of ZnMnO<subscript>3</subscript> in the paramagnetic matrix. [ABSTRACT FROM AUTHOR]