title: Ferromagnetism at Room Temperature Induced by Spin Structure Change in BiFe1-xCoxO3Thin Films.
abstract: The coexistence and coupling of ferromagnetic and ferroelectric orders in a single material is crucial for realizing next-generation multifunctional applications. The coexistence of such orders is confirmed at room temperature in epitaxial thin films of BiFe1-xCoxO3(x ≤ 0.15), which manifests a spin structure change from a low-temperature cycloidal one to a high-temperature collinear one with canted ferromagnetism.
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Hojo
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Kawabe
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Shimizu
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Yamamoto
authors.affiliation: Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, 466-8555, Japan.
authors.forename: Ko
authors.initials: K
authors.lastname: Mibu
authors.affiliation: Department of Condensed Matter Physics and Materials Science, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata, 700106, India.
authors.forename: Kartik
authors.initials: K
authors.lastname: Samanta
authors.affiliation: Department of Condensed Matter Physics and Materials Science, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata, 700106, India.
authors.forename: Tanusri
authors.initials: T
authors.lastname: Saha-Dasgupta
authors.affiliation: Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Azuma
keywords: bismuth ferrite; epitaxial thin films; multiferroic materials; spin structure change; weak ferromagnetism