IMR OpenIR
Transverse acoustic phonon excitation of two-dimensional Heisenberg ferromagnetic system
Alternative TitleTransverse acoustic phonon excitation of two-dimensional Heisenberg ferromagnetic system
Cheng TaiMin1; Ze Xianyu1
2006
Source PublicationACTA PHYSICA SINICA
ISSN1000-3290
Volume55Issue:9Pages:4828-4836
AbstractA magnon-phonon inter-action model is developed on the basis of two-dimensional square Heisenberg ferromagnetic system. The transverse acoustic phonon excitation is studied through Matsubara Green function theory, and the transverse acoustic phonon dispersion curve is calculated at the main symmetric point and on the symmetric line in the first Brillouin zone. It's found that on the line Sigma in first Brillouin zone, there is hardening for the transverse acoustic phonon in the smaller wave vector zone (point Gamma near k(x)a < 0.2), but there is softening for the transverse acoustic phonon in the softening zone (0.25 < k(x)a < 0.7), there is hardening for the transverse acoustic phonon at point M near (0.75 < k(x)a). On the line Delta, there is no phonon softening and hardening for transverse acoustic phonon. On the line Z, there is softening for transverse acoustic phonon in smaller wave vector zone (point X near k(x)a < 0.65), but there is hardening for the transverse acoustic phonon at the point M nearby. The influences of different parameters on the transverse acoustic phonon excitation are also illustrated. It's found that the coupling of the magnon-phonon coupling and the spin wave stiffness are the main factors affecting the transverse acoustic phonon softening.
KeywordDENSITY-OF-STATES INVAR ALLOY LATTICE-DYNAMICS MAGNON FE86CO4ZR10 MAGNETISM MECHANISM FE3PT magnon-phonon interaction transverse acoustic phonon softening Matsubara Green function theory ferromagnetic system
Indexed ByCSCD
Language英语
CSCD IDCSCD:2442931
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158256
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.NE University
Recommended Citation
GB/T 7714
Cheng TaiMin,Ze Xianyu. Transverse acoustic phonon excitation of two-dimensional Heisenberg ferromagnetic system[J]. ACTA PHYSICA SINICA,2006,55(9):4828-4836.
APA Cheng TaiMin,&Ze Xianyu.(2006).Transverse acoustic phonon excitation of two-dimensional Heisenberg ferromagnetic system.ACTA PHYSICA SINICA,55(9),4828-4836.
MLA Cheng TaiMin,et al."Transverse acoustic phonon excitation of two-dimensional Heisenberg ferromagnetic system".ACTA PHYSICA SINICA 55.9(2006):4828-4836.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cheng TaiMin]'s Articles
[Ze Xianyu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cheng TaiMin]'s Articles
[Ze Xianyu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cheng TaiMin]'s Articles
[Ze Xianyu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.