Antiferromagnetic resonance in a GdCr3(BO3)4 crystal
A.N. Bludov, Yu.O. Savina, М.I. Kobets, V.A. Pashchenko, S.L. Gnatchenko
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine 47 Nauky Ave., Kharkiv 61103, Ukraine
N.N. Kuzmin, V.V. Mal’tsev, and N.I. Leonyuk
Lomonosov Moscow State University, 1 Leninskie Gory, Moscow 119991, Russia
Received February 19, 2017
Experimental AFMR studies of GdCr3(BO3)4 single crystal in a frequency range 17–38 GHz at 4.2 K have been carried out. The energy gap in the spin wave spectrum has been determined as (25.5±0.5) GHz. It is shown that the high-frequency properties of gadolinium chromium borate are well described in the frame of the model for a two-sublattice antiferromagnet with an easy-plane anisotropy.
PACS: 75.50.Ее Antiferromagnetics;
Key words: gadolinium chromoborate, antiferromagnetic, antiferromagnetic resonance.
Published online: March 27, 2018