Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system

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	Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system
其他题名	Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system
	Cheng TaiMin 1; Ze Xianyu 1; Gang TieChen 1
	2006
发表期刊	ACTA PHYSICA SINICA
ISSN	1000-3290
卷号	55 期号:6 页码:2941-2948
摘要	A magnon-phonon interaction model is built in the two-dimensional double square ferromagnetic system. By using Matsubara Green function theory, we study magnetic excitation of the system, and calculate the magnon dispersion curve on the main symmetric points and lines in the Brillouin zone. The influences of optical phonon and acoustic phonon on the magnetic excitation of the system are compared, and the influences of the parameter change on the magnon softening are also studied. It is concluded that the coupling of the optical phonon and magnon has predominant effect on the magnon softening, especially the longitudinal optical phonon has the greatest effect on the magnon softening, and the effect of nonmagnetic ion on magnon softening is stronger than that of magnetic ion.
关键词	MAGNON MANGANITES magnon-phonon interaction magnon softening magnetic excitation optical phonon ferromagnetic system
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:2506644
引用统计	被引频次：4[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/155194
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.东北大学
推荐引用方式 GB/T 7714	Cheng TaiMin,Ze Xianyu,Gang TieChen. Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system[J]. ACTA PHYSICA SINICA,2006,55(6):2941-2948.
APA	Cheng TaiMin,Ze Xianyu,&Gang TieChen.(2006).Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system.ACTA PHYSICA SINICA,55(6),2941-2948.
MLA	Cheng TaiMin,et al."Effect of optical phonon on magnetic excitation of two-dimensional Heisenberg ferromagnetic system".ACTA PHYSICA SINICA 55.6(2006):2941-2948.