Theory of spin effect on Coulomb blockade of single-electron tunneling in ferromagnetic system
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Spin dependent single electron tunneling in a ferromagnetic double junction is investigated theoretically in the limit of incoherent sequential tunneling. The junction consists of a small nonmagnetic metallic grain with discrete energy levels, which is connected to two ferromagnetic electrodes. We have developed a new theoretical model taking into account charge as well as spin degrees of freedom. The model allows us to investigate new phenomena such as spin accumulation and spin fluctuations.
4 page LaTeX (annalen.cls included), 2 eps-figures included.Has been presented at the international conference LOCALISATION 1999 - Disorder and Interaction in Transport Phenomena, Hamburg, Germany, 30. July - 2. August, 1999. To appear in Annalen der Physik
4 page LaTeX (annalen.cls included), 2 eps-figures included.Has been presented at the international conference LOCALISATION 1999 - Disorder and Interaction in Transport Phenomena, Hamburg, Germany, 30. July - 2. August, 1999. To appear in Annalen der Physik