Soliton solution of continuum magnetization-equation in conducting ferromagnet with a spin-polarized current

Abstract

Exact soliton solutions of a modified Landau-Lifshitz equation for the magnetization of conducting ferromagnet in the presence of a spin-polarized current are obtained by means of inverse scattering transformation. From the analytical solution effects of spin-current on the frequency, wave number, and dispersion law of spin wave are investigated. The one-soliton solution indicates obviously current-driven precession and periodic shape-variation as well. The inelastic collision of solitons by which we mean the shape change before and after collision appears due to the spin current. We, moreover, show that complete inelastic collisions can be achieved by adjusting spectrum and current parameters. This may lead to a potential technique for shape control of spin wave.

arXiv comment8 pages, 2 figures

References in corpus (7)

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• Anatomy of Spin-Transfer Torque
• Mechanisms of spin-polarized current-driven magnetization switching
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• The Role of Spin-Dependent Interface Scattering in Generating Current-Induced Torques in Magnetic Multilayers
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Cited by in corpus (7)

• Soliton Solution for the Spin Current in Ferromagnetic Nanowire
• Magnetic Soliton and Soliton Collisions of Spinor Bose-Einstein Condensates in an Optical Lattice
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• Dark Soliton Interaction of Spinor Bose-Einstein Condensates in an Optical Lattice
• Interaction of a nonlinear spin wave and magnetic soliton in a uniaxial anisotropic ferromagnet
• Dynamics of Domain Wall in a Biaxial Ferromagnet With Spin-torque
• Screw-pitch effect and velocity oscillation of domain-wall in ferromagnetic nanowire driven by spin-polarized current