10 papers · 1 filter
Electron-phonon Interaction in Non-polar Quantum Dots Induced by the Amorphous Polar Environment
A. N. Poddubny, S. V. Goupalov, V. I. Kozub +1
We propose a mechanism of energy relaxation for carriers confined in a non-polar quantum dot surrounded by an amorphous polar environment. The carrier transitions are due to their…
Point contact spectroscopy of hopping transport: effects of a magnetic field
V. I. Kozub, A. A. Zyuzin, O. Entin-Wohlman +3
The conductance of a point contact between two hopping insulators is expected to be dominated by the individual localized states in its vicinity. Here we study the additional effec…
Orbital ac spin-Hall effect in the hopping regime
O. Entin-Wohlman, A. Aharony, Y. M. Galperin +2
The Rashba and Dresselhaus spin-orbit interactions are both shown to yield the low temperature spin-Hall effect for strongly localized electrons coupled to phonons. A frequency-dep…
Effective description of hopping transport in granular metals
I. S. Beloborodov, A. V. Lopatin, V. M. Vinokur +1
We develop a theory of a variable range hopping transport in granular conductors based on the sequential electron tunnelling through many grains in the presence of the strong Coulo…
Current-induced magnetization changes in a spin valve due to incoherent emission of non-equilibrium magnons
V. I. Kozub, J. Caro
We describe spin transfer in a ferromagnet/normal metal/ferromagnet spin-valve point contact. Spin is transferred from the spin-polarized device current to the magnetization of the…
1/f noise in hopping conduction: Role of multi-site aggregates
V. I. Kozub, Y. M. Galperin, V. Vinokur
We propose a mechanism for 1/f-type noise in hopping insulators based on the multi-electron charge redistribution within the specific aggregates of the localized states located in…