| Issue |
Europhys. Lett.
Volume 49, Number 1, January I 2000
|
|
|---|---|---|
| Page(s) | 75 - 80 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2000-00499-9 | |
| Published online | 01 September 2002 | |
Investigation of localization in using hyperfine interaction
High Magnetic Field Laboratory, Max-Planck-Institut
für Festkörperforschung Centre National de la Recherche Scientifique
B.P. 166, F-38042 Grenoble Cedex 9, France
Received:
11
June
1999
Accepted:
2
November
1999
At magnetic fields where an oscillatory structure in the Hall constant
points to the localization of electrons, we investigate the NMR-induced
change in the transverse magnetoresistivities.
Because the nuclear hyperfine field BHF
acts only on the spin of
the electrons, the role of spin-splitting can be seperated from that of
the external magnetic field for the magnetic field dependence of RH.
This experiment shows that the oscillatory structure in RH
is directly related to a redistribution in the
occupation of the two spin states in the lowest Landau level.
PACS: 72.20.My – Galvanomagnetic and other magnetotransport effects / 72.80.Ey – III-V and II-VI semiconductors
© EDP Sciences, 2000
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