科研之友
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摘要
We have studied the magnetocapacitance (MC) of a ferromagnetic (FM) metal-oxide-FM metal tunnel junction. The capacitance changes linearly as the magnetic field increases, and its amount depends on the shape of the density of state at the Fermi level of a FM metal. We have also investigated the effect of the bandwidth change induced by the electron-electron interaction on the MC. We have found that the effect of the bandwidth change on the MC can be substantial near the magnetic phase boundary.
- 出版日期2007-5-1
