A. M. Tikhonov, N. G. Pavlov, “Nonlinear absorption of radio waves in a noncollinear antiferromagnet”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2014, Volume 99, Issue 4,Pages <nobr>255

This article is cited in 2 papers

CONDENSED MATTER

Nonlinear absorption of radio waves in a noncollinear antiferromagnet

A. M. Tikhonov^a, N. G. Pavlov^b

^a P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences, Moscow
^b Moscow Institute of Physics and Technology

Abstract: The nonlinear absorption of radio waves ($200$–$800$ MHz) in a noncollinear cubic antiferromagnet Mn$_3$Al$_2$Ge$_3$O$_{12}$ in an external magnetic field ${\mathbf H}\parallel[001]$ has been studied in the temperature range of $1.2$–$4.2$ K. We attribute the observed dissipation of the electromagnetic energy to the parametric excitation of inhomogeneous surface waves at the boundaries of antiferromagnetic domains.

Received: 27.01.2014

DOI: 10.7868/S0370274X14040110