Electronic structure of nuclear-spin-polarization-induced quantum dots

Pershin, Y. V.

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Electronic structure of nuclear-spin-polarization-induced quantum dots

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Pershin, Y. V.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Pershin, Y. V. (2004). Electronic structure of nuclear-spin-polarization-induced quantum dots. Physical Review B, 69(8): 085314.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FF06-D

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 nonzero 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.