title: Tuning the Weak Ferromagnetic States in Dysprosium Orthoferrite.
abstract: RFeO3orthoferrites, where R is a rare-earth ion of the lanthanide series, are attracting attention mostly because of their promising fast spin dynamics. The magnetic properties of these materials seem to crucially depend on whether the magnetizations of the R and Fe ions' weak ferromagnetic (WFM) components are parallel or antiparallel to each other. Here, we report an extensive investigation of a high-quality DyFeO3single crystal in which the induced Dy3+magnetization (FDy) has a natural tendency to be antiparallel to Fe3+sublattice magnetization (FFe) within a large temperature window. Moreover, we find that specific variations of temperature and applied magnetic fields allow us to make FDyparallel to FFe, or force a spin-flip transition in FFe, among other effects. We found three different magnetic states that respond to temperature and magnetic fields, i.e. linear versus constant or, alternatively, presenting either behavior depending on the history of the sample. An original magnetic field-versus-temperature phase diagram is constructed to indicate the region of stability of the different magnetic phases, and to reveal the precise conditions yielding sudden spin switching and reversals. Knowledge of such a phase diagram is of potential importance to applications in spintronics and magnetic devices.
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.|Materials Genome Institute, and Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China.
authors.forename: Shixun
authors.initials: S
authors.lastname: Cao
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.|State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Chen
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.|State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Weiyao
authors.initials: W
authors.lastname: Zhao
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Xu
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.
authors.forename: Guohua
authors.initials: G
authors.lastname: Wang
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.
authors.forename: Yali
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.
authors.forename: Baojuan
authors.initials: B
authors.lastname: Kang
authors.affiliation: Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
authors.forename: Hongjian
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.|CNR SPIN, Via Vetoio, I-67100 Laquila, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Stroppa
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Ren-Kui
authors.initials: RK
authors.lastname: Zheng
authors.affiliation: Materials Genome Institute, and Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China.
authors.forename: Jincang
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Physics, and International Center of Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China.|Materials Genome Institute, and Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ren
authors.affiliation: Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, L-4362 Esch/Alzette, Luxembourg.
authors.forename: Jorge
authors.initials: J
authors.lastname: Íñiguez
authors.affiliation: Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
authors.forename: L
authors.initials: L
authors.lastname: Bellaiche