Incipient Orbital Order in Half-MetallicBa2FeReO6

Autor:	Eduardo Granado, J. Gopalakrishnan, C. Azimonte, Qingzhen Huang, Julio C. Cezar, Kannadka Ramesha, Jeffrey W. Lynn, J. C. P. Campoy
Rok vydání:	2007
Předmět:	Condensed Matter::Materials Science Magnetization Paramagnetism Tetragonal crystal system Materials science Condensed matter physics Spins Magnetic moment Ferrimagnetism General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Spin (physics) Orbital magnetization
Zdroj:	Physical Review Letters. 98
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.98.017204
Popis:	Largely unquenched Re 5d orbital magnetic moments in half-metallic $Ba_2FeReO_6$ drive a symmetry lowering transition from a cubic paramagnet to a compressed tetragonal (c/a < 1) ferrimagnet below TC\sim 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd5d15fe41bb4d3a119f25c8b96da50e https://doi.org/10.1103/physrevlett.98.017204 Zobrazit plný text záznamu