Ertler, Christian (2008) Magnetoelectric bistabilities in ferromagnetic resonant tunneling structures. Applied Physics Letters 93, p. 142104.
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The conditions for the occurrence of pronounced magnetoelectric bistabilities in the resonant tunneling through a ferromagnetic quantum well are theoretically investigated. The bistability appears due to the mutual feedback of the carriers Coulomb interaction and the carriers exchange coupling with magnetic impurities in the well. It is shown that the well Curie temperature depends strongly on the relative alignment of the quantum well level and the reservoirs chemical potentials, which can be modified electrically. Switching between a current-on/magnetism-off and a current-off/magnetism-on mode becomes possible if the well temperature lies in-between the bistable values of the well Curie temperature.
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian|
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Owner:||Prof. Dr. Jaroslav Fabian|
|Deposited On:||25 May 2009 15:19|
|Last Modified:||28 Oct 2009 13:54|
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