Anomalous spin splitting of two-dimensional electrons in an AlAs quantum well

Authors
Papadakis, SJ De Poortere, EP Shayegan, M
Citation
Sj. Papadakis et al., Anomalous spin splitting of two-dimensional electrons in an AlAs quantum well, PHYS REV B, 59(20), 1999, pp. R12743-R12746
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
20
Year of publication
1999
Pages
R12743 - R12746
Database
ISI
SICI code
0163-1829(19990515)59:20<R12743:ASSOTE>2.0.ZU;2-4
Abstract
We measure the effective Lande g-factor of two-dimensional electrons in a m odulation-doped AlAs quantum well by tilting the sample in a magnetic field and monitoring the evolution of the magnetoresistance oscillations. The da ta reveal that \g\ = 9.0, which is much enhanced with respect to the report ed bulk value of 1.9. Surprisingly, in a large range of magnetic field and Landau level fillings, the value of the enhanced g-factor appears to be con stant. [S0163-1829(99)50120-3].