Gate-dependent spin-torque in a nanoconductor-based spin-valve

Enhancement in spin-torque efficiency by nonuniform spin current generated within a tapered nanopillar spin valve

We examine the effect that a spatially nonuniform spin current with a component polarized partially out of the plane has on a low saturation magnetization nanomagnet free layer. Micromagnetic simulations indicate that the spin-torque efficiency acting upon the reversing nanomagnet can be enhanced through this process, resulting in faster switching with smaller currents. In doing so, we determin...

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...

Spin-torque transfer in batch-fabricated spin-valve magnetic nanojunctions „invited..

A two terminal spin-injection device is fabricated using a nanostencil process with a Co–Cu–Co stack. The stack can be deposited both by sputtering and by electron-beam evaporation. A better edge definition is observed in evaporation-deposited films under cross section transmission electron microscopy. Both methods succeeded in producing junctions with sub-100 nm lateral dimensions and show spi...

Gate-Voltage Response of a One-Dimensional Ballistic Spin Valve without Spin-Orbit Interaction

Maciej Misiorny and Carola Meyer Department of Microtechnology and Nanoscience MC2, Chalmers University of Technology, SE-412 96 Göteborg, Sweden Faculty of Physics, Adam Mickiewicz University, 61-614 Poznań, Poland Fachbereich Physik, Universität Osnabrück, D-49069 Osnabrück, Germany Peter Grünberg Institut (PGI-6), Forschungszentrum Jülich and JARA-Fundamentals of Future Information Technolog...

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