title: Control of magnetocrystalline anisotropy by epitaxial strain in double perovskite Sr(2)FeMoO(6) films.
abstract: We demonstrate tuning of magnetocrystalline anisotropy in high-quality Sr(2)FeMoO(6) epitaxial films over a range of several thousand Gauss using strain induced by epitaxial growth on substrates of varying lattice constants. Spectroscopic measurements reveal a striking, linear dependence of the out-of-plane anisotropy on the strain-induced tetragonal distortion of the Sr(2)FeMoO(6) lattice. This anisotropy can be tuned from +2000 to -3300 Oe, a range sufficient to rotate the easy axis from in plane to out of plane. Combined with its half-metallicity and high Curie temperature, this result implies a broad range of scientific and technological applications for this novel spintronic material.
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: Chunhui
authors.initials: C
authors.lastname: Du
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: Rohan
authors.initials: R
authors.lastname: Adur
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: Hailong
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: Adam J
authors.initials: AJ
authors.lastname: Hauser
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: Fengyuan
authors.initials: F
authors.lastname: Yang
authors.affiliation: Department of Physics, The Ohio State University, 191 West Woodruff Avenue Columbus, Ohio 43210, USA.
authors.forename: P Chris
authors.initials: PC
authors.lastname: Hammel