학술논문
Threshold effect of microwave power on ferromagnetic resonance in K.sub.0.4[Cr(CN).sub.6][Mn(S)-pn](S)-pnH.sub.0.6 single crystals
Document Type
Report
Author
Source
JETP Letters. Sept, 2009, Vol. 90 Issue 1, p36, 6 p.
Subject
Language
English
ISSN
0021-3640
Abstract
A stepwise change in the ferromagnetic resonance spectrum in a K.sub.0.4[Cr(CN).sub.6][Mn(S)-pn](S)-pnH.sub.0.6 chiral magnet has been observed in a critical microwave magnetic field of 1.8 Oe. The threshold changes in the ferromagnetic resonance spectra are caused by Suhl instability leading to the generation of defects of the magnetic structure, chiral spin solitons. The threshold effect is not observed in the same microwave range in similar chiral crystals [Cr(CN).sub.6][Mn(S)-pnH([H.sub.2]O)]([H.sub.2]O) with a stronger Heisenberg exchange interaction.