Random-field effect in diluted Ising antiferromagnets
- 1 May 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 27 (9) , 5821-5823
- https://doi.org/10.1103/physrevb.27.5821
Abstract
It is argued that near the percolation threshold of diluted systems there should be an instability of the long-range order in spatially random fields much smaller than the local molecular fields as a result of the strong ramification of the infinite percolation cluster, in all dimensions. This may give a possible explanation for the experiments of Yoshizawa et al., who find a destruction of the long-range order due to relatively small external magnetic fields in diluted two- and three-dimensional Ising antiferromagnets.Keywords
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