Efect of Varying Dzyaloshinskii–Moriya Interaction on the Bistable Nano-Scale Soliton Switching

查看全文 作　　者：[1,2,3]L.Kavitha;[1]M.Saravanan;[1]V.Senthilkumar;[3,4]D.Gopi 机构地区：[1]Department of Physics, Periyar University;[2]The Abdus Salam International Centre for Theoretical Physics;[3]Center for Nanoscience and Nanotechnology, Periyar University;[4]Department of Chemistry, Periyar University 出　　处：《Communications in Theoretical Physics》索引2013年第60卷第12期,共5页 基　　金：support by NBHM in the form of major research project, BRNS in the form of Young Scientist Research Award, India and ICTP, Italy in the form of Junior Associateship;financial support from CSIR, India in the form of Senior Research Fellowship 摘　　要：The efect of Dzyaloshinskii–Moriya(D-M) interaction on the bistable nano-scale soliton switching ofers the possiblity of developing a new innovative approach for data storage technology. The dynamics of Heisenberg ferromagnetic spin system is expressed in terms of generalized inhomogeneous higher order nonlinear Schro¨dinger(NLS) equation. The bistable soliton switching in the ferromagnetic medium is established by solving the associated coupled evolution equations for amplitude and velocity of the soliton using the fourth order Runge–Kutta method numerically. 关 键 词：双稳态孤子 相互作用 开关 纳米级 耦合方程组 数据存储技术 铁磁介质 高阶非线性