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Spin solitons and waves in chiral molecular ferrimagnets |
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| Authors: | R. B. Morgunov M. V. Kirman V. L. Berdinskiĭ K. Inoue J. Kishine |
| Affiliation: | (1) Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia;(2) Orenburg State University, Orenburg, 460018, Russia;(3) Graduated School of Science, Hiroshima University, 739-8526 Hiroshima, Japan;(4) Faculty of Engineering, Kushu University of Technology, 804-8550 Kushu, Japan |
| Abstract: | Resonance modes corresponding to a spin-soliton resonance have been found in the electron spin resonance spectra of [Cr(CN)6][Mn(S)-pnH-(H2O)]H2O two-dimensional (2D) chiral single crystals and [Mn{(R/S)-pn}]2[Mn{(R/S)-pn}2(H2O)][Cr(CN)6]2 chiral single crystals with a 3D magnetic order. It is also established that the chiral crystals of both types exhibit a spin-wave resonance analogous to the excitation of standing spin waves in thin magnetic films. At the same time, racemic crystals of the first type do not exhibit spin-soliton resonance. The entire body of experimental data indicates that the chirality of crystals influences the spin excitations (standing spin waves and solitons) in these media. |
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