Nuclear Spin Effect in a Metallic Spin Valve

Nuclear spin effect in a metallic spin valve.

We study electronic transport through a ferromagnet normal-metal ferromagnet system and we investigate the effect of hyperfine interaction between electrons and nuclei in the normal-metal part. A switching of the magnetization directions of the ferromagnets causes nuclear spins to precess. We show that the effect of this precession on the current through the system is large enough to be observe...

Spin-dependent Seebeck effect in non-local spin valve devices

Mikhail Erekhinsky, Fèlix Casanova, Ivan K. Schuller, and Amos Sharoni Department of Physics, Center for Advanced Nanoscience, University of California, San Diego, La Jolla, California 92093, USA CIC NanoGUNE, 20018 Donostia-San Sebastian, Basque Country, Spain IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Basque Country, Spain Department of Physics, Institute of Nanotechnology and A...

Perpendicular hot electron spin-valve effect in a new magnetic field sensor: The spin-valve transistor.

A new magnetic field sensor is presented, based on perpendicular hot electron transport in a giant magnetoresistance (CoyCu) 4 multilayer, which serves as a base region of an n-silicon metal-base transistor structure. A 215% change in collector current is found in 500 Oe (77 K), with typical characteristics of the spin-valve effect. The in-plane magnetoresistance was only 3%. The transistor str...

STUDY OF NUCLEAR LEVEL DENSITY AND SPIN CUT-OFF FACTORS

Nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹A‹63,from a microscopic theory, which includes nuclear pairing interaction. Single particle levels for both Seeger and Nilsson potentials were used in the calcdations. Level densities extracted from the theory are compared with their conesponding experimental values, It is found that the overall...

Micromagnetic simulation of high-power spin-torque oscillator in half- metallic Heusler alloy spin valve nanopillar