title: Multiferroicity and Magnetoelectric Coupling in TbMnO3 Thin Films.
abstract: In this work, we report the growth and functional characterizations of multiferroic TbMnO3 thin films grown on Nb-doped SrTiO3 (001) substrates using pulsed laser deposition. By performing detailed magnetic and ferroelectric properties measurements, we demonstrate that the multiferroicity of spin origin known in the bulk crystals can be successfully transferred to TbMnO3 thin films. Meanwhile, anomalous magnetic transition and unusual magnetoelectric coupling related to Tb moments are observed, suggesting a modified magnetic configuration of Tb in the films as compared to the bulk counterpart. In addition, it is found that the magnetoelectric coupling enabled by Tb moments can even be seen far above the Tb spin ordering temperature, which provides a larger temperature range for the magnetoelectric control involving Tb moments.
authors.affiliation: Department of Physics, Wuhan University , Wuhan 430072, China.|School of Science and Hubei Collaborative Innovation Center for High-Efficiency Utilization of Solar Energy, Hubei University of Technology , Wuhan 430068, China.
authors.forename: Ni
authors.initials: N
authors.lastname: Hu
authors.affiliation: School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology , Wuhan 430074, China.
authors.forename: Chengliang
authors.initials: C
authors.lastname: Lu
authors.affiliation: School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology , Wuhan 430074, China.
authors.forename: Zhengcai
authors.initials: Z
authors.lastname: Xia
authors.affiliation: Department of Physics, Wuhan University , Wuhan 430072, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Xiong
authors.affiliation: Department of Physics, Wuhan University , Wuhan 430072, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Fang
authors.affiliation: Department of Physics, Wuhan University , Wuhan 430072, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Shi
authors.affiliation: Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China.|Institute for Quantum Materials, Hubei Polytechnic University , Huangshi 435000, China.
authors.forename: Jun-Ming
authors.initials: JM
authors.lastname: Liu
keywords: dielectric; magnetism; magnetoelectric effect; multiferroicity; thin film