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Type: Artigo de periódico
Title: Incipient Orbital Order In Half-metallic Ba2fereo6.
Author: Azimonte, C
Cezar, J C
Granado, E
Huang, Q
Lynn, J W
Campoy, J C P
Gopalakrishnan, J
Ramesha, K
Abstract: Largely unquenched Re 5d orbital magnetic moments in half-metallic Ba2FeReO6 drive a symmetry lowering transition from a cubic paramagnet to a compressed tetragonal (c/a < 1) ferrimagnet below Tc ~ 305 K, with a giant linear magnetoelastic constant and the spins lying spontaneously along the unique tetragonal axis. The large orbital magnetization and degree of structural deformation indicate proximity to a metal-insulator transition. These results point to an incipient orbitally ordered state in the metallic ferrimagnetic phase.
Rights: aberto
Identifier DOI: 
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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