2011/06/17 by É. M. Épshteǐn, E. M. Epshtein, Epshtein, E. M. +4 · 1 citation
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic Properties and Applications #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Theoretical and Computational Physics #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1106.3519
14 pages, 1 figure
arxiv created 2011/06/17 · openalex publication_date 2011/06/17 · arxiv updated 2011/06/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Spin-polarized current effect is studied on the static and dynamic magnetization of the antiferromagnet in a ferromagnet - antiferromagnet junction. The macrospin approximation is generalized to antiferromagnets. Canted antiferromagnetic configuration and resulting magnetic moment are induced by an external magnetic field. The resonance frequency and damping are calculated, as well as the threshold current density corresponding to instability appearance. A possibility is shown of generating low-damping magnetization oscillations in terahertz range. The fluctuation effect is discussed on the canted antiferromagnetic configuration.