Field induced ordering in highly frustrated antiferromagnets
UNSPECIFIED. (2000) Field induced ordering in highly frustrated antiferromagnets. PHYSICAL REVIEW LETTERS, 85 (15). pp. 3269-3272. ISSN 0031-9007Full text not available from this repository.
We predict that an external field can induce a spin ordering in highly frustrated classical Heisenberg magnets. We find analytically stabilization of collinear states by thermal fluctuations at a one-third of the saturation field for kagome and garnet lattices and at a half of the saturation field for pyrochlore and frustrated square lattices. This effect is studied numerically for the frustrated square-lattice antiferromagnet by Monte Carlo simulations for classical spins and by exact diagonalization for S = 1/2. The field induced collinear states have a spin gap and produce magnetization plateaus.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICAL REVIEW LETTERS|
|Publisher:||AMERICAN PHYSICAL SOC|
|Date:||9 October 2000|
|Number of Pages:||4|
|Page Range:||pp. 3269-3272|
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