Modulation doping and observation of the integral quantum Hall effect in PbTe/Pb1−xEuxTe multiquantum wells
- 22 November 1993
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 63 (21), 2908-2910
- https://doi.org/10.1063/1.110269
Abstract
In Pb1−xEuxTe layers grown by molecular beam epitaxy a drastic reduction of electron mobility is observed for increasing Eu content. This is exploited for the investigation of the electronic properties of the two‐dimensional electron gas in PbTe/Pb1−xEuxTe quantum wells (x=4.7%). In such structures we report the observation of the integer quantum Hall effect with a dominance of the odd filling factors due to the large spin splitting in the lead salts.Keywords
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