Ordering by disorder: Ground-state selection in fcc vector antiferromagnets
- 15 April 1987
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 61 (8) , 3962-3964
- https://doi.org/10.1063/1.338570
Abstract
Face‐centered‐cubic antiferromagnets with vector spins (including those representing MnO and Cd1−xMnxTe) have nontrivial continuous degeneracies of their ground states which are broken by effects of either thermal or quenched disorder. Using spin‐wave calculations near T=0, it is argued that thermal fluctuations select the collinear states. On the other hand, dilution favors noncollinear (yet long‐range ordered) states.This publication has 21 references indexed in Scilit:
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