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

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

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作  者:L.Kavitha M.Saravanan V.Senthilkumar 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》2013年第12期658-662,共5页理论物理通讯(英文版)

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 effect of Dzyaloshinskii-Moriya (D-M) interaction on the bistable nano-scale soliton switching offers 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 Schr6dinger (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:SOLITONS magnetization reversal mechanisms perturbation theory exchange interactions 

分 类 号:O437[机械工程—光学工程] TM564[理学—光学]

 

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