Magnetic ordering of EuTe/PbTe multilayers determined by x-ray resonant diffraction


Autoria(s): DIAZ, B.; GRANADO, E.; ABRAMOF, E.; RAPPL, P. H. O.; Chitta, Valmir Antonio; Henriques, Andre Bohomoletz
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/04/2012

18/04/2012

2008

Resumo

In this work we use resonant x-ray diffraction combined with polarization analysis of the diffracted beam to study the magnetic ordering in EuTe/PbTe multilayers. The presence of satellites at the (1/2 1/2 1/2) magnetic reflection of a 50 /repetition EuTe/PbTe superlattice demonstrated the existence of magnetic correlations among the alternated EuTe layers. The behavior of the satellites intensity as T increases toward the Neel temperature T(N) indicates that these correlations persist nearly up to T(N) and suggests the preferential decrease of the magnetic order parameter of external monolayers of each EuTe layer within the superlattice. (C) 2008 American Institute of Physics.

Identificador

APPLIED PHYSICS LETTERS, v.92, n.24, 2008

0003-6951

http://producao.usp.br/handle/BDPI/16264

10.1063/1.2945802

http://dx.doi.org/10.1063/1.2945802

Idioma(s)

eng

Publicador

AMER INST PHYSICS

Relação

Applied Physics Letters

Direitos

openAccess

Copyright AMER INST PHYSICS

Palavras-Chave #NEUTRON-DIFFRACTION #SUPERLATTICES #SCATTERING #Physics, Applied
Tipo

article

original article

publishedVersion