spin valve


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spin valve

[′spin ‚valv]
(electronics)
References in periodicals archive ?
Banerjee, "Spin-transfer-torque switching in spin valve structures with perpendicular, canted, and in-plane magnetic anisotropies," Journal of Applied Physics, vol.
The 2D materials have been largely researched as nonmagnetic interlayer of spin valve, which is similar to traditional magnetic tunneling junctions consisting of two ferromagnetic (FM) layers separated by a nonmagnetic insulating spacer, usually [Al.sub.2][O.sub.3] and MgO, and the resistance depends on the magnetization orientation of two ferromagnetic electrodes [12, 13].
Invention of the new spin OLED was made possible by another device, an "organic spin valve," an invention Vardeny and colleagues reported in the journal Nature in 2004.
"Using the direct spectroscopic technique Low Energy Muon Spin Rotation (LE-uSR), our experiments have visualised the extracted spin polarisation close to buried interfaces of a spin valve," said Professor Christian Bernhard, from the University of Fribourg Physics Department.
The principal spintronics device, the spin valve, consists of two magnetic layers decoupled by a spin-transporting spacer, which allows parallel (on) and antiparallel (off) alignment of the magnetizations (spins) of the two magnetic layers.
The organic spin valves resulted from the Utah-based physicists' plan to demonstrate that the production of a spin valve with an organic semiconductor, instead of a standard semiconductor, is feasible.
The readback portion of the head is a conventional permalloy shielded, bottom spin valve sensor with a GMR ratio of 18 percent and a shield-to-shield spacing of 85nm.
In a sense they "spin" the magnetization -- hence the name "spin valve" for this type of film.
Chen, "Micromagnetic simulation of critical current density of spin transfer torque switching in a full-Heusler [Co.sub.2]Fe[Al.sub.0.5][Si.sub.0.5] alloy spin valve nanopillar," Journal of Magnetism and Magnetic Materials, vol.