Spin-polarised electrons in a one-magnet-only Mott spin junction.

ABSTRACT: The current flowing through a Mott spin junction depends on the relative spin orientation of the two ferromagnetic layers comprising the "source" and "drain" sides of the junction. The resulting current asymmetry is detected as giant or tunnelling magnetoresistance depending on whether the two ferromagnets are separated by a metal or an insulator. Based on the fundamental principles of reciprocity for spin-dependent electron scattering, one can envisage a one-magnet-only spin junction in which the source is non-magnetic, and the spin information is encoded by the spin polarisation of the electrons that have crossed or are backscattered from the drain magnetic layer. The practical significance of using an unpolarised source is that the state of the magnetic layer can be modified without aff

SUBMITTER: De Pietro L 

PROVIDER: S-EPMC5643535 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature