Abstract:
The nonlinear absorption of radio waves (200–800 MHz) in a noncollinear cubic antiferromagnet Mn3Al2Ge3O12 in an external magnetic field H∥[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.
Citation:
A. M. Tikhonov, N. G. Pavlov, “Nonlinear absorption of radio waves in a noncollinear antiferromagnet”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:4 (2014), 255–257; JETP Letters, 99:4 (2014), 229–231