Spin-orbit Torques and Magnetization Switching in Perpendicularly Magnetized Epitaxial Pd/Co 2 FeAl/MgO Structures
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چکیده
منابع مشابه
Spin-transfer assisted thermally activated switching distributions in perpendicularly magnetized spin valve nanopillars
We present switching field distributions of spin-transfer assisted magnetization reversal in perpendicularly magnetized Co/Ni multilayer spin-valve nanopillars at room temperature. Switching field measurements of the Co/Ni free layer of spin-valve nanopillars with a 50 nm× 300 nm ellipse cross section were conducted as a function of current. The validity of a model that assumes a spin-current d...
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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 the phase diagram of switching driven by this torque, finding quantitative agreement with experiments. When optimized, the SHE torque can enable memory and logic devices with similar critical curre...
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nanopillars due to the polarizer dipole field D. B. Gopman, D. Bedau, S. Mangin, C. H. Lambert, E. E. Fullerton, J. A. Katine, and A. D. Kent Department of Physics, New York University, New York, New York 10003, USA Institute Jean Lamour, UMR CNRS 7198, Nancy Université, Vandoeuvre, France CMRR, University of California at San Diego, La Jolla, California 92093, USA San Jose Research Center, Hit...
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Spin-orbit coupling in ferromagnets gives rise to the anomalous Hall effect and the anisotropic magnetoresistance, both of which can be used to create spin-transfer torques in a similar manner as the spin Hall effect. In this paper, we show how these effects can be used to reliably switch perpendicularly magnetized layers and to move domain walls. A drift-diffusion treatment of the anomalous Ha...
متن کاملModulated switching current density and spin-orbit torques in MnGa/Ta films with inserting ferromagnetic layers
We report modulated switching current density and spin-orbit torques (SOT) in MnGa/Ta films with inserting very thin Co2FeAl and Co layers. Ferromagnetic coupling has been found in MnGa/Co2FeAl/Ta, resulting in a decreased effective anisotropy field. On the contrary, in MnGa/Co/Ta, antiferromagnetic coupling plays a dominant role. The switching current density Jc in MnGa/Ta is 8.5 × 107 A/cm2. ...
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ژورنال
عنوان ژورنال: Physical Review Applied
سال: 2020
ISSN: 2331-7019
DOI: 10.1103/physrevapplied.13.054039