Magnetic coupled spin-torque devices for nonvolatile logic applications

Abstract

The magnetic coupled spin-torque device (MCSTD) is a new spintronics device architecture that is free from the difficulties in spin transport and spin detection. It uses spin-torque transfer technique and magnetic coupling to modulate its energy barrier. Requirements for logic device: fast switching speed, inherent gain, inversion capability, and spin interconnection techniques of MCSTD are presented. Logic functionalities such as NAND, NOR, and NOT are successfully demonstrated in micromagnetics simulations.