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Type: Artigo de periódico
Title: Incipient orbital order in half-metallic Ba2FeReO6
Author: Azimonte, C
Cezar, JC
Granado, E
Huang, Q
Lynn, JW
Campoy, JCP
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 T-C similar to 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.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.98.017204
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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