Journal article
Critical Behaviour of a Two-Dimensional Random Antiferromagnet: Rb2Mn0.5F4
In
Journal of Physics C: Solid State Physics
—
1976, Volume 9, Issue 5, pp. L121-L125
Abstract
A neutron scattering study of the order parameter, correlation length and staggered susceptibility of the two-dimensional random antiferromagnet Rb2Mn0.5Ni0.5F4 is reported. The system is found to exhibit a well-defined phase transition with critical exponents identical to those of the isomorphous pure materials K2NiF4 and K2MnF4.
Thus, in these systems, which have the asymptotic critical behaviour of the two-dimensional Ising model, randomness has no measurable effect on the phase-transition behaviour.
| Language: | English |
|---|---|
| Year: | 1976 |
| Pages: | L121-L125 |
| ISSN: | 17473802 and 00223719 |
| Types: | Journal article |
| DOI: | 10.1088/0022-3719/9/5/005 |
