Nonlinear spin-wave phenomena in a [Mn{(R/S)-pn}2]2[Mn{(R/S)-pn}2H2O][Cr(CN)6] chiral molecular ferrimagnet
Tóm tắt
The instability of ferromagnetic resonance (FMR) spectra initiated by microwave power was observed in [Mn{(R/S)-pn}2]2[Mn{(R/S)-pn}2H2O][Cr(CN)6] single crystals. It was established that the value of threshold microwave power P
th = 0.2−0.9 mW depends on the orientation of the easy magnetization axis relative to the sweeping magnetic field of the spectrometer. P > P
th spin-wave bistability occurs in the region of high microwave fields.
Tài liệu tham khảo
Vonsovskii, S.V., Ferromagnetic Resonance, Oxford: Pergamon, 1966.
Akhiezer, A.I., Bar’yakhtar, V.G., and Peletminskii, S.V., Spinovye volny (Spin Waves), Moscow: Nauka, 1967.
Mito, M., Iriguchi, K., Deguchi, H., et al., Phys. Rev. B, 2009, vol. 79, p. 012406.
Morgunov, R.B., Kirman, M.V., Inoue, K., et al., Phys. Rev. B, 2008, vol. 77, p. 184419.
Morgunov, R.B. and Mushenok, F.B., Pis’ma Zh. Eksp. Teor. Fiz., 2009, vol. 90, no. 1, p. 39 [JETP Lett. (Engl. Transl.), 2009, vol. 90, no. 1, p. 36].
Suhl, H., J. Phys. Chem. Solids, 1957, vol. 1, p. 209.
Inoue, K., Kikuchi, K., and Ohba, M., Angew. Chem. Int. Ed., 2003, vol. 42/39, p. D3461.
Gui, Y.S., Wirthmann, A., and Hu, C.-M., Phys. Rev. B, 2009, vol. 80, p. 184422.
McKinstry, K.D., Patton, C.E., and Kogekar, M., J. Appl. Phys., 1985, vol. 58, no. 2, p. 925.