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Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum
Giant Spin Hall One of the primary challenges in the field of spin-electronics, which exploits the electron's spin rather than its charge, is to create strong currents of electrons with polarized… Expand
Spin-torque ferromagnetic resonance induced by the spin Hall effect.
We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The flow of alternating current through a… Expand
Spintronics: A Spin-Based Electronics Vision for the Future
This review describes a new paradigm of electronics based on the spin degree of freedom of the electron. Either adding the spin degree of freedom to conventional charge-based electronic devices or… Expand
Current-induced switching of perpendicularly magnetized magnetic layers using spin torque from the spin Hall effect.
- L. Liu, O. Lee, T. Gudmundsen, D. Ralph, R. Buhrman
- Materials Science, Medicine
- Physical review letters
- 29 August 2012
We show that in a perpendicularly magnetized Pt/Co bilayer the spin-Hall effect (SHE) in Pt can produce a spin torque strong enough to efficiently rotate and switch the Co magnetization. We calculate… Expand
Microwave oscillations of a nanomagnet driven by a spin-polarized current
The recent discovery that a spin-polarized electrical current can apply a large torque to a ferromagnet, through direct transfer of spin angular momentum, offers the possibility of manipulating… Expand
Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
We report a giant spin Hall effect in β-W thin films. Using spin torque induced ferromagnetic resonance with a β-W/CoFeB bilayer microstrip, we determine the spin Hall angle to be |θSHβ-W|=0.30±0.02,… Expand
Measurement of the spin-transfer-torque vector in magnetic tunnel junctions
The transfer of spin angular momentum from a spin-polarized current to a ferromagnet can generate sufficient torque to reorient the magnet’s moment. This torque could enable the development of… Expand
Spin-transfer-driven ferromagnetic resonance of individual nanomagnets.
- J. Sankey, P. Braganca, A. G. F. Garcia, I. Krivorotov, R. Buhrman, D. Ralph
- Physics, Medicine
- Physical review letters
- 4 February 2006
We demonstrate a technique that enables ferromagnetic resonance measurements of the normal modes for magnetic excitations in individual nanoscale ferromagnets, smaller in volume by more than a factor… Expand
Ultrafine metal particles
In this paper we present a novel and versatile technique for the production of ultrafine metal particles by evaporation from a temperature‐regulated oven containing a reduced atmosphere of an inert… Expand
Magnetic vortex oscillator driven by d.c. spin-polarized current
Transfer of angular momentum from a spin-polarized current to a ferromagnet provides an efficient means to control the magnetization dynamics of nanomagnets. A peculiar consequence of this spin… Expand