Abstract
The charge current flowing through the triple junction composed of ferromagnetic external electrodes and inner layers of different thickness separated by three non-magnetic barriers is analysed in four colinear magnetic configurations. The thickness of the inner layers and the bias voltage can be set in such a way that the junction can act as a tunnel diode with current flowing effectively in one specific direction. The diode properties of the junction can be adjusted by a change of relative orientation of magnetic moments in the inner layers and electrodes; especially the junction can act as a diode in only one magnetic configuration. Magnetic configuration switching can also reverse the direction of the flow of tunnel current.
Published Version
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