Soft mode of antiferromagnetic multilayers near the surface spin-flop transition

Use este identificador para citar ou linkar para este item: https://repositorio.ufrn.br/handle/123456789/28771

Título:	Soft mode of antiferromagnetic multilayers near the surface spin-flop transition
Autor(es):	Dantas, Ana L. Vieira, Selma R. Almeida, N. S. Carriço, Artur da Silva
Palavras-chave:	Antiferromagnetic multilayers;Spin-flop transition
Data do documento:	2005
Editor:	Physical review B
Referência:	DANTAS, Ana L.; VIEIRA, Selma Rozane; ALMEIDA, N. S.; CARRIÇO, A. S. Soft Mode of Antiferromagnetic Multilayers Near the Spin Flop Transition. Physical Review B - Condensed Matter and Materials Physics, EUA, v. 71, p. 44091-44095, 2005. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.71.014409. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.014409. Acesso em: 07 abr. 2020.
Resumo:	We investigate the long wavelength soft mode of antiferromagnetic (AF) multilayers near the field induced instability of the AF order. We show that in the vicinity of the surface spin flop field sHSSFd the frequency of the lowest mode is V2 /g2=asHSSF−Hd+bsHSSF−Hd2, where a and b are functions of the magnetic parameters of the multilayer and H is the external field strength. For antiferromagnetic films the first order term is zero (due to the absence of demagnetizing effects) and b=1.
URI:	https://repositorio.ufrn.br/jspui/handle/123456789/28771
ISSN:	2469-9950 (print), 2469-9969 (online)
Aparece nas coleções:	CCET - DFTE - Artigos publicados em periódicos

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