Bergeard, N., Jamet, J.P., Mougin, A., Ferré, J., Gierak, J., Bourhis, E. and Stamps, R.L. (2012) Dynamic fluctuations and two-dimensional melting at the spin reorientation transition. Physical Review B, 86(9), 094431. (doi: 10.1103/PhysRevB.86.094431)
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Publisher's URL: http://dx.doi.org/10.1103/PhysRevB.86.094431
Abstract
Instabilities and strong spatiotemporal fluctuations in out-of-plane demagnetized stripe domain patterns of a Pt/Co(0.5 nm)/Pt film designed by Ga<sup>+</sup> ion irradiation were visualized by polar magneto-optical Kerr effect microscopy and studied in the spin reorientation transition temperature region. A two-dimensional-stripe melting transition was evidenced before reaching the in-plane spin state. Slow dynamics were driven by short-range instabilities on magnetic defects which trigger long-range transverse wall fluctuations. The spatial and temporal behavior of stripelike “floating” patches was investigated. Dynamics cannot be simply interpreted by models previously proposed for liquid crystals.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Stamps, Professor Robert |
Authors: | Bergeard, N., Jamet, J.P., Mougin, A., Ferré, J., Gierak, J., Bourhis, E., 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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