| Issue |
Europhys. Lett.
Volume 54, Number 4, May 2001
|
|
|---|---|---|
| Page(s) | 495 - 501 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00272-8 | |
| Published online | 01 December 2003 | |
Spin effects in the local density of states of 
Institut für Festkörperphysik, Universität
Hannover Appelstr. 2, 30167 Hannover, Germany
Received:
20
November
2000
Accepted:
8
March
2001
We present spin-resolved measurements of the local density of
states in 
-doped . Both spin components
exhibit strong mesoscopic fluctuations. In the regime of the
lowest Landau band, the main features of the spin-up and spin-down
components of the local density of states are found to be
identical apart from Zeeman splitting. Based on this observation,
we introduce a new method to measure the g-factor in a material
where macroscopic methods are severely restricted by disorder.
Differences between the spin-up and spin-down components are
discussed in terms of spin relaxation due to spin-orbit coupling.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 72.20.My – Galvanomagnetic and other magnetotransport effects / 85.30.Mn – Junction breakdown and tunneling devices (including resonance tunneling devices)
© EDP Sciences, 2001
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