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6 papers · 2 filters
Waveguide diffusion modes and slowdown of D'yakonov-Perel' spin relaxation in narrow 2-D semiconductor channels
A. G. Mal'shukov, K. A. Chao
We have shown that in narrow 2D semiconductor channels the D'yakonov-Perel' spin relaxation rate is strongly reduced. This relaxation slowdown appears in special waveguide diffusio…
Disorder and interaction induced pairing in the addition spectra of quantum dots
C. M. Canali
We have investigated numerically the electron addition spectra in quantum dots containing a small number (N < 11) of interacting electrons, in presence of strong disorder. For a sh…
Large Magnetoresistance Ratio in Ferromagnetic Single-Electron Transistors in the Strong Tunneling Regime
X. H. Wang, A. Brataas
We study transport through a ferromagnetic single-electron transistor. The resistance is represented as a path integral, so that systems where the tunnel resistances are smaller th…
Butterfly-like spectra and collective modes of antidot superlattices in magnetic fields
Egidijus Anisimovas, Peter Johansson
We calculate the energy band structure for electrons in an external periodic potential combined with a perpendicular magnetic field. Electron-electron interactions are included wit…
Circuit Effect On The Current-Voltage Characteristics Of Ultrasmall Tunnel Junctions
X. H. Wang, K. A. Chao
We have used the method of generating functional in imaginary time to derive the current-voltage characteristics of a tunnel junction with arbitrary tunneling conductance, connecte…
The effect of the spin-orbit geometric phase on the spectrum of Aharonov-Bohm oscillations in a semiconductor mesoscopic ring
A. G. Mal'shukov, V. V. Shlyapin, K. A. Chao
Taking into account the spin precession caused by the spin-orbit splitting of the conduction band in semiconductor quantum wells, we have calculated the Fourier spectra of conducta…