Klopper, A.V. and Stamps, R.L. (2006) Size effects in frustrated dipolar spin systems. Physical Review B, 74(21), p. 214402. (doi: 10.1103/PhysRevB.74.214402)
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Publisher's URL: http://dx.doi.org/10.1103/PhysRevB.74.214402
Abstract
The effect of classical dipole interactions on the paramagnetic to glass phase transition is studied in three- and quasi-two-dimensional site-disordered Ising spin systems. A field theory is developed using a Gaussian variational approach to estimate transition temperatures and study phase stability. Long-range dipolar interactions are found to permit a transition to the glass state. An investigation of the role of relative length scales within the model highlights restrictions on the existence of the glass phase in the two-dimensional case, and this effect is shown to be sensitively dependent on Ising spin geometry.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Stamps, Professor Robert |
| Authors: | Klopper, A.V., and Stamps, R.L. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review B |
| ISSN: | 1098-0121 |
| ISSN (Online): | 1550-235X |
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