Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1674180 | Thin Solid Films | 2009 | 4 Pages |
Abstract
We report the enhancement of the saturation magnetization in BiFeO3 films achieved by magnetic annealing. The saturation magnetization of the film annealed in a magnetic field is found to be 80 emu/cc, which is an increase nearly by a factor of 10 compared to the as-grown one. From the investigation of optical second harmonic generation (SHG), we observe the presence of sout-polarization under sin-polarization in the film annealed in a magnetic field, which implies that the spin state is homogeneous antiferromagnetic one rather than cycloidal one. We interpret the observed large enhancement in the saturation magnetization to be due to the magnetic phase transition from cycloidal to homogenous antiferromagnetic one.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Sang-Hyun Kim, Jae-Woo Jeong, Jeong-Woo Lee, Sung-Chul Shin,