title: Giant magnetoresistance and anomalous magnetic properties of highly epitaxial ferromagnetic LaBaCo2O(5.5+δ) thin films on (001) MgO.
abstract: Ferromagnetic thin films of the A-site nano-ordered double perovskite LaBaCo(2)O(5.5+δ) (LBCO) were grown on (001) MgO, and their structural and magnetic properties were characterized. The as-grown films have an excellent epitaxial behavior with atomically sharp interfaces, with the c-axis of the LBCO structure lying in the film plane and the interface relationship given by (100)(LBCO)//(001)(MgO) and [001](LBCO)//[100](MgO) or [010](MgO). The as-grown LBCO films exhibit a giant magnetoresistance (54% at 40 K under 7 T) and an anomalous magnetic hysteresis, depending strongly on the temperature and the applied magnetic field scan width.
authors.affiliation: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
authors.forename: Ming
authors.initials: M
authors.lastname: Liu
authors.forename: Chunrui
authors.initials: C
authors.lastname: Ma
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Gregory
authors.initials: G
authors.lastname: Collins
authors.forename: Chonglin
authors.initials: C
authors.lastname: Chen
authors.forename: Jie
authors.initials: J
authors.lastname: He
authors.forename: Jiechao
authors.initials: J
authors.lastname: Jiang
authors.forename: Efstathios I
authors.initials: EI
authors.lastname: Meletis
authors.forename: Li
authors.initials: L
authors.lastname: Sun
authors.forename: Allan J
authors.initials: AJ
authors.lastname: Jacobson
authors.forename: Myung-Hwan
authors.initials: MH
authors.lastname: Whangbo