Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction

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	Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction
	Y. J. Guo; Y. M. Tao; X. Chen; M. H. Qin; S. Dong; J. M. Liu
	2011
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	110 期号:5
摘要	A direct inter-conversion between conduction electron spin-current and spin wave spin-current has been experimentally realized in Pt/Y(3)Fe(5)O(12) and Pt/Y(3)Fe(5)O(12)/Pt heterostructures [Y. Kajiwara et al., Nature 464, 262 (2010)]. We investigate the dynamics of this inter-conversion in an in-plane spiral magnet with the nearest-neighboring interaction and Dzyaloshinskii-Moriya interaction, using the modified Landau-Lifshitz-Gilbert equation. The calculations indicate that an unattenuated conical spin wave in the spiral magnet can be excited by a spin-torque representing a conduction-electron spin-current. The substantial role of the Dzyaloshinskii-Moriya interaction in stabilizing such unattentuated spin wave transmission is revealed. In addition, the influences of the spin-torque term and damping coefficient on the stability of the spin wave transmission are discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3631827]
部门归属	[guo, y. j.; tao, y. m.; chen, x.; liu, j. -m.] nanjing univ, lab solid state microstruct, nanjing 210093, peoples r china. [guo, y. j.] jiangsu inst educ, dept phys, nanjing 210013, peoples r china. [qin, m. h.; liu, j. -m.] s china normal univ, inst adv mat, sch phys, guangzhou 510006, guangdong, peoples r china. [dong, s.] southeast univ, dept phys, nanjing 211189, peoples r china. [liu, j. -m.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, jm (reprint author), nanjing univ, lab solid state microstruct, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Classical Heisenberg-model Ferromagnets Mnsi Phase Order
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WOS记录号	WOS:000294968600096
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30369
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Guo,Y. M. Tao,X. Chen,et al. Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction[J]. Journal of Applied Physics,2011,110(5).
APA	Y. J. Guo,Y. M. Tao,X. Chen,M. H. Qin,S. Dong,&J. M. Liu.(2011).Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction.Journal of Applied Physics,110(5).
MLA	Y. J. Guo,et al."Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction".Journal of Applied Physics 110.5(2011).