Electronic structure of nuclear-spin-polarization-induced quantum dots
Abstract
We study a system in which electrons in a two-dimensional electron gas are confined by a nonhomogeneous nuclear spin polarization. The system consists of a heterostructure that has non-zero nuclei spins. We show that in this system electrons can be confined into a dot region through a local nuclear spin polarization. The nuclear-spin-polarization-induced quantum dot has interesting properties indicating that electron energy levels are time-dependent because of the nuclear spin relaxation and diffusion processes. Electron confining potential is a solution of diffusion equation with relaxation. Experimental investigations of the time-dependence of electron energy levels will result in more information about nuclear spin interactions in solids.
Cite
@article{arxiv.cond-mat/0305002,
title = {Electronic structure of nuclear-spin-polarization-induced quantum dots},
author = {Yu. V. Pershin},
journal= {arXiv preprint arXiv:cond-mat/0305002},
year = {2007}
}