Voltage-controlled interlayer coupling in perpendicularly magnetized magnetic tunnel junctions.

ABSTRACT: Magnetic interlayer coupling is one of the central phenomena in spintronics. It has been predicted that the sign of interlayer coupling can be manipulated by electric fields, instead of electric currents, thereby offering a promising low energy magnetization switching mechanism. Here we present the experimental demonstration of voltage-controlled interlayer coupling in a new perpendicular magnetic tunnel junction system with a GdO_x tunnel barrier, where a large perpendicular magnetic anisotropy and a sizable tunnelling magnetoresistance have been achieved at room temperature. Owing to the interfacial nature of the magnetism, the ability to move oxygen vacancies within the barrier, and a large proximity-induced magnetization of GdO_x, both the magnitude and the sign of

SUBMITTER: Newhouse-Illige T 

PROVIDER: S-EPMC5440805 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature