Possibility of exchange switching ferromagnet - antiferromagnet junctions

Autor:	Gulyaev, Yu. V., Zilberman, P. E., Epshtein, E. M.
Rok vydání:	2010
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Current flowing is studied in magnetic junctions consisting of a ferromagnetic metal (FM), antiferromagnetic conductor (AFM) and a nonmagnetic metal closing the electric circuit. The FM layer with high anisotropy and pinned spins of the magnetic atoms in the lattice acts as a spin injector relative to the AFM layer. To obtain resulting magnetization in the AFM layer, magnetic field is applied, which may be varied to control the magnetization. The spin-polarized current from the FM layer creates a torque and makes it possible to switch the magnetization. A possibility is shown to lower the threshold current density by the orders of magnitude by means of the magnetic field. Comment: 10 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1011.4303 Zobrazit plný text záznamu View this record from Arxiv