Influence of fluctations on spin systems with spatially isotropic competing interactions

dc.contributor.author	Barbosa, Marcia Cristina Bernardes	pt_BR
dc.date.accessioned	2014-09-23T02:12:11Z	pt_BR
dc.date.issued	1990	pt_BR
dc.identifier.issn	0163-1829	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/103597	pt_BR
dc.description.abstract	We consider spin systems with competing interactions isotropic with respect to the axes of a cubic lattice. A renormalization-group analysis carried to second order in E=d -4 demonstrates that the criticai behavior for the para-modulated phase transition is 2m-component-like with m = 3 for a uniaxially modulated phase and m =4 for a cubically modulated phase, in the same universality class as the m-component spin model with uniaxial competing interactions. Each case may describe ditferent helical magnetic rare-earth alloys. Possible phase diagrams are proposed encompassing such compounds.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. B, Condensed matter. New York. Vol. 42, no. 10 (Oct. 1990), p. 6363-6370	pt_BR
dc.rights	Open Access	en
dc.subject	Sistemas de spin	pt_BR
dc.subject	Propriedades magneticas das substancias	pt_BR
dc.subject	Transformações de fase	pt_BR
dc.title	Influence of fluctations on spin systems with spatially isotropic competing interactions	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000015323	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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