Spin injection in ferromagnetic single-electron transistor
نویسندگان
چکیده
منابع مشابه
Spin effects in ferromagnetic single-electron transistors
Electron tunneling in ferromagnetic single-electron transistors is considered theoretically in the sequential tunneling regime. A new formalism is developed, which operates in a two-dimensional space of states, instead of one-dimensional space used in the spinless case. It is shown that spin fluctuations can be significantly larger than the charge fluctuations. The influence of discrete energy ...
متن کاملNonequilibrium spin distribution in single-electron transistor
Single-electron transistor with ferromagnetic outer electrodes and nonmagnetic island is studied theoretically. Nonequilibrium electron spin distribution in the island is caused by tunneling current. The dependencies of the magnetoresistance ratio δ on the bias and gate voltages show the dips which are directly related to the induced separation of Fermi levels for electrons with different spins...
متن کاملNon-equilibrium spin accumulation in ferromagnetic single-electron transistors
We study transport in ferromagnetic single-electron transistors. The non-equilibrium spin accumulation on the island caused by a finite current through the system is described by a generalized theory of the Coulomb blockade. It enhances the tunnel magnetoresistance and has a drastic effect on the time-dependent transport properties. A transient decay of the spin accumulation may reverse the ele...
متن کاملNonequilibrium spin distribution in a single-electron transistor
Single-electron transistor with ferromagnetic outer electrodes and a nonmagnetic island is studied theoretically. Nonequilibrium electron-spin distribution in the island is caused by tunneling current. The dependences of the magnetoresistance ratio d on the bias and gate voltages show the dips which are directly related to the induced separation of Fermi levels for electrons with different spin...
متن کاملProbing Spin Accumulation induced Magnetocapacitance in a Single Electron Transistor
The interplay between spin and charge in solids is currently among the most discussed topics in condensed matter physics. Such interplay gives rise to magneto-electric coupling, which in the case of solids was named magneto-electric effect, as predicted by Curie on the basis of symmetry considerations. This effect enables the manipulation of magnetization using electrical field or, conversely, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Superlattices and Microstructures
سال: 1999
ISSN: 0749-6036
DOI: 10.1006/spmi.1998.0644