Antiferromagnetic Domain Wall Motion Driven by Spin-Orbit Torques
نویسندگان
چکیده
منابع مشابه
Antiferromagnetic Domain Wall Motion Driven by Spin-Orbit Torques.
We theoretically investigate the dynamics of antiferromagnetic domain walls driven by spin-orbit torques in antiferromagnet-heavy-metal bilayers. We show that spin-orbit torques drive antiferromagnetic domain walls much faster than ferromagnetic domain walls. As the domain wall velocity approaches the maximum spin-wave group velocity, the domain wall undergoes Lorentz contraction and emits spin...
متن کاملDomain wall motion in nanopillar spin-valves with perpendicular anisotropy driven by spin-transfer torques
J. Cucchiara,1 S. Le Gall,1 E. E. Fullerton,2 J.-V. Kim,3 D. Ravelosona,3 Y. Henry,4 J. A. Katine,5 A. D. Kent,6 D. Bedau,6 D. Gopman,6 and S. Mangin1 1Institut Jean Lamour, Université de Lorraine UMR CNRS 7198, Vandoeuvre lès Nancy, France 2Center for Magnetic Recording Research, University of California San Diego, La Jolla, California 92093-0401, USA 3Institut d’Electronique Fondamentale, UMR...
متن کاملNanowire spin torque oscillator driven by spin orbit torques.
Spin torque from spin current applied to a nanoscale region of a ferromagnet can act as negative magnetic damping and thereby excite self-oscillations of its magnetization. In contrast, spin torque uniformly applied to the magnetization of an extended ferromagnetic film does not generate self-oscillatory magnetic dynamics but leads to reduction of the saturation magnetization. Here we report st...
متن کاملCurrent driven spin–orbit torque oscillator: ferromagnetic and antiferromagnetic coupling
We consider theoretically the impact of Rashba spin-orbit coupling on spin torque oscillators (STOs) in synthetic ferromagnets and antiferromagnets that have either a bulk multilayer or a thin film structure. The synthetic magnets consist of a fixed polarizing layer and two free magnetic layers that interact through the Ruderman-Kittel-Kasuya-Yosida interaction. We determine analytically which ...
متن کاملCurrent-induced domain wall motion with adiabatic and nonadiabatic spin torques in magnetic nanowires
We investigate current-driven domain wall (DW) propagation in magnetic nanowires in the framework of the modified Landau-Lifshitz-Gilbert equation with both adiabatic and nonadiabatic spin torque (AST and NAST) terms. By employing a simple analytical model, we can demonstrate the essential physics that any small current density can drive the DW motion along a uniaxial anisotropy nanowire even i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.117.087203