Current-induced resonance in a ferromagnet - antiferromagnet junction

Authors :: Chigarev, S. G.
Epshtein, E. M.
Gulyaev, Yu. V.
Kotov, V. D.
Mikhailov, G. M.
Zilberman, P. E.
Publication Year :: 2012
Abstract: We calculate the response of a ferromagnet - antiferromagnet junction to a high-frequency magnetic field as a function of the spin-polarized current through the junction. Conditions are choused under which the response is zero in absence of such a current. It is shown that increasing in the current density leads to proportional increase in the resonance frequency and resonant absorption. A principal possibility is indicated of using ferromagnet - antiferromagnet junction as a terahertz radiation detector.<br />Comment: 10 pages, 4 figures