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Phys. Rev. B 66, 035303 (2002) [5 pages]

Electronic transport through a nuclear-spin-polarization-induced quantum wire

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Yu. V. Pershin1,2, S. N. Shevchenko1,3, I. D. Vagner1,2,4, and P. Wyder1
1Grenoble High Magnetic Fields Laboratory, Max-Planck-Institute für Festkorperforschung and CNRS, BP 166, F-38042 Grenoble Cedex 9, France
2Department of Physics, Clarkson University, Potsdam, New York 13699-5820
3B. I. Verkin Institute for Low Temperature Physics and Engineering, 47 Lenin Avenue, 61103 Kharkov, Ukraine
4Holon Academic Institute of Technology, 52 Golomb Street, Holon 58102, Israel

Received 12 December 2001; published 1 July 2002

Electron transport in a low-dimensional structure—the nuclear-spin-polarization-induced quantum wire is theoretically studied. In the proposed system the local nuclear-spin polarization creates the effective hyperfine field that confines the electrons with the spins opposite to the hyperfine field to the regions of maximal nuclear-spin polarization. The influence of the nuclear-spin relaxation and diffusion on the electron energy spectrum and on the conductance of the quantum wire is calculated and the experimental feasibility is discussed.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.035303
DOI:
10.1103/PhysRevB.66.035303
PACS:
72.25.-b, 73.23.-b, 75.40.Gb
 
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