Perpendicular magnetic anisotropy and strong magneto-optic properties of SrRuO3 epitaxial films
- 1 May 1995
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 66 (18) , 2427-2429
- https://doi.org/10.1063/1.113962
Abstract
Epitaxial films of the ferromagnetic perovskite SrRuO3 were measured with a bulk magnetometer and with a local magneto‐optic Sagnac interferometer in transmission and in reflection. We find a magnetic easy axis perpendicular to the films, and for saturated remanent magnetization along this direction the Faraday rotation and the Kerr rotation at λ=840 nm are about 0.75×105 deg/cm and 0.85°, respectively. The temperature dependence of the remanent magnetization in the low temperature limit is dominated by spin‐wave excitations, yielding a notable decrease with T3/2. Using Sagnac–Kerr scanning and transmission electron microscopy imaging we correlate the coercivity with the grain size.Keywords
This publication has 0 references indexed in Scilit: