Phase transitions and metastable states in the presence of random fields

R.A. Cowley, R.J. Birgeneau and G. Shirane

Physica A: Statistical Mechanics and its Applications, 1986, vol. 140, issue 1, 285-290

Abstract: The application of a uniform magnetic field to a diluted Ising antiferromagnet produces a random staggered field and so can be used to study the random field Ising model. In this paper we describe neutron scattering measurements on MnxZn1−xF2. They show that at low temperatures there are many metastable states which are all stable for experimentally accessible times. There is a sharp boundary in the H/T plane which separates metastability from ergodicity. The critical phenomena close to this metastability boundary is discussed.

Date: 1986
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:140:y:1986:i:1:p:285-290

DOI: 10.1016/0378-4371(86)90233-5

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