Current-induced resonance in ferromagnet-antiferromagnet junctions

sd-Exchange electron spin resonance in a ferromagnetic metal

“…The amplitude of precession is maximal at the res onance frequency (10) The Q factor of the system is given by the expression (11) The power absorbed in unit volume has the form (12) where the angular brackets stand for time averaging. We have (13) where θ is the angle between the vectors M and H 0 .…”

“…These data stimulate interest in systems resonant in the terahertz range that can be used as receivers of terahertz radiation. A ferromag net-antiferromagnet magnetic transition whose high resonance frequency is due to the strong exchange interaction between the magnetic sublattices of the antiferromagnet is an example [10,11].…”

Spin Injection Mechanisms for Radiation and Detection of Terahertz Waves Based on Magnetic Nano Junction

“…According to estimations, such channel of interaction was in orders of magnitude (in 10 3 …10 4 times) more effective, than the standard multipolar channels. In 2010-2012 in papers [5,6] and others the first experimental observation and investigations of spin-injection terahertz radiation were found at frequencies 3…30 THz and high enough efficiency of the radiation was reviled.…”

Current-induced resonance in a ferromagnet - antiferromagnet junction

“…On a level with "conventional" spintronics studying effects in ferromagnet/ferromagnet junctions, a new direction has emerged which is related with spin-polarized current effect on the antiferromagnetic layer in ferromagnet/antiferromagnet junction [1]- [14], so that a term "antiferromagnetic spintronics" has appeared [1,8].…”

“…The current effect on the spectrum and damping of the magnetization oscillation in antiferromagnets was studied in Refs. [13,14]. It was shown that the spin-polarized current effect leads to decrease in damping and to instability of the antiparallel configuration with switching to parallel one.…”