Anisotropic sensor and memory device with a ferromagnetic tunnel barrier as the only magnetic element.

Multiple spin functionalities are probed on Pt/LaCoMnO/Nb:SrTiO, a device composed by a ferromagnetic insulating barrier sandwiched between non-magnetic electrodes. Uniquely, LaCoMnO thin films present strong perpendicular magnetic anisotropy of magnetocrystalline origin, property of major interest for spintronics. The junction has an estimated spin-filtering efficiency of 99.