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Optical nonreciprocity in magnetic structures related to high-Tc superconductors.
Orenstein, J.
Afiliação
  • Orenstein J; Department of Physics, University of California, Berkeley, 94720, USA.
Phys Rev Lett ; 107(6): 067002, 2011 Aug 05.
Article em En | MEDLINE | ID: mdl-21902360
ABSTRACT
Rotation of the plane of polarization of reflected light (Kerr effect) is a direct manifestation of broken time-reversal symmetry and is generally associated with the appearance of a ferromagnetic moment. Here I identify magnetic structures that may arise within the unit cell of cuprate superconductors that generate polarization rotation despite the absence of a net moment. For these magnetic symmetries the Kerr effect is mediated by magnetoelectric coupling, which can arise when antiferromagnetic order breaks inversion symmetry. The structures identified are candidates for a time-reversal breaking phase in the pseudogap regime of the cuprates.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Estados Unidos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Estados Unidos