Field-Induced Order and Magnetization Plateaux in Frustrated Antiferromagnets
A. Honecker, O. A. Petrenko, M. E. Zhitomirsky
Abstract
We argue that collinearly ordered states which exist in strongly frustrated spin systems for special rational values of the magnetization are stabilized by thermal as well as quantum fluctuations. These general predictions are tested by Monte Carlo simulations for the classical and Lanczos diagonalization for the S=1/2 frustrated square-lattice antiferromagnet.
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