title: Second-harmonic generation with magnetic-field controllability.
abstract: Based on density functional theory with the generalized gradient approximation plus on-site Coulomb repulsion method, we study the magnetic-ordering dependence of second-harmonic generation (SHG) in a polar magnet BiCoO(3). The large second-order optical susceptibility, which can reach 3.7x10(-7) esu, exhibits a strong magnetic-ordering dependence, giving rise to magnetic-field controllable SHG response in polar magnets.
authors.affiliation: Department of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China. jusheng@suda.edu.cn
authors.forename: Sheng
authors.initials: S
authors.lastname: Ju
authors.forename: Tian-Yi
authors.initials: TY
authors.lastname: Cai
authors.forename: Chi-I
authors.initials: CI
authors.lastname: Wei
authors.forename: Guang-Yu
authors.initials: GY
authors.lastname: Guo