Curvature and torsion effects in spin-current driven domain wall motion
نویسندگان
چکیده
Kostiantyn V. Yershov,1,2,* Volodymyr P. Kravchuk,1,† Denis D. Sheka,3,‡ and Yuri Gaididei1,§ 1Bogolyubov Institute for Theoretical Physics of National Academy of Sciences of Ukraine, 03680 Kyiv, Ukraine 2National University of “Kyiv-Mohyla Academy”, 04655 Kyiv, Ukraine 3Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine (Received 18 December 2015; revised manuscript received 7 February 2016; published 15 March 2016)
منابع مشابه
Rashba Torque Driven Domain Wall Motion in Magnetic Helices
Manipulation of the domain wall propagation in magnetic wires is a key practical task for a number of devices including racetrack memory and magnetic logic. Recently, curvilinear effects emerged as an efficient mean to impact substantially the statics and dynamics of magnetic textures. Here, we demonstrate that the curvilinear form of the exchange interaction of a magnetic helix results in an e...
متن کاملمشخصات پیوندگاه‌های ابررسانا - فرومغناطیس - ابررسانا با پایانه‌های ابررسانای یکتایی
We study numerically the electronic heat capacity, spin and charge current in a diffusive Superconductor-Ferromagnetic-Superconductor systems، with singlet superconducting leads and non-uniform ferromagnetic layer. Specially, we focus on ferromagnetic layer with domain wall and conical structures incorporation the spin-active interfaces. We investigate, how the 0-π transition is influenced by n...
متن کاملDeterministic Domain Wall Motion Orthogonal To Current Flow Due To Spin Orbit Torque
Spin-polarized electrons can move a ferromagnetic domain wall through the transfer of spin angular momentum when current flows in a magnetic nanowire. Such current induced control of a domain wall is of significant interest due to its potential application for low power ultra high-density data storage. In previous reports, it has been observed that the motion of the domain wall always happens p...
متن کاملTheory of current-driven domain wall motion: spin transfer versus momentum transfer.
A self-contained theory of the domain wall dynamics in ferromagnets under finite electric current is presented. The current has two effects: one is momentum transfer, which is proportional to the charge current and wall resistivity (rho(w)); the other is spin transfer, proportional to spin current. For thick walls, as in metallic wires, the latter dominates and the threshold current for wall mo...
متن کاملDynamics of Domain Wall in Thin Film Driven by Spin Current
The dynamics of magnetization under the applied spin current is modeled by the generalized Landau-Lifshitz-Gilbert equation with a spin transfer torque term. Using matched asymptotic expansion with the domain wall thickness ǫ as the small parameter, we derive analytically the dynamic law for the domain wall motion induced by the spin current. We show that the domain wall driven by adiabatic cur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2016