title: Magnetoelectric effect driven by magnetic domain modification in LuFe2O4.
abstract: The magnetocapacitance effect was investigated using impedance spectroscopy on single crystals of LuFe(2)O(4). The intrinsic impedance response could be separated from the interfacial response and showed a clear hysteresis loop below T(Ferri)∼240  K under the magnetic field. The neutron diffraction experiment under the magnetic field proves the origin of the dielectric property related to the motion of the nanosized ferromagnetic domain boundary. These results imply that the modification of the microscopic domain structure is responsible for the magnetoelectric effect in LuFe(2)O(4).
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kambe
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Yukimasa
authors.initials: Y
authors.lastname: Fukada
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Kano
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Tomoko
authors.initials: T
authors.lastname: Nagata
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Okazaki
authors.affiliation: Research Laboratory for Surface Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Yokoya
authors.affiliation: Quantum Beam Science Directorate, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai, Naka, Ibaraki 319-1195, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Wakimoto
authors.affiliation: Quantum Beam Science Directorate, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai, Naka, Ibaraki 319-1195, Japan.
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Kakurai
authors.affiliation: Department of Physics, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Naoshi
authors.initials: N
authors.lastname: Ikeda