Small amplitude oscillations of sine-gordon vortex states in planar magnets in three dimensions

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DC Field	Value	Language
dc.creator	Pereira A . R.	-
dc.date	2002	-
dc.date.accessioned	2013-06-01T09:42:24Z	-
dc.date.available	2013-06-01T09:42:24Z	-
dc.date.issued	2013-06-01	-
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000400025	-
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=3&spage=815	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/7913	-
dc.description	We investigate the spectrum of small amplitude oscillations of the sine-Gordon vortex-antivortex pair in layered ferromagnetic systems described by the anisotropic three-dimensional XY-model. In the case of a small interlayer coupling constant, vortex-pairs can be formed independently in each plane. Analytical expressions for two discrete modes with zero frequency are obtained. These zero modes are associated with the two-dimensional motion of the excitation on an individual plane and are important because the interference between them and a vortex-pair gives rise to contributions to the central peak. The continuum states, which contribute to EPR linewidth, are derived using the Born approximation.	-
dc.publisher	Sociedade Brasileira de Física	-
dc.source	Brazilian Journal of Physics	-
dc.title	Small amplitude oscillations of sine-gordon vortex states in planar magnets in three dimensions	-
Appears in Collections:	Physics and Astronomy

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