About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Surface Science
Paper
Magnetotransport and cyclotron resonance in AlAs quantum wells
Abstract
We have made the first measurements of cyclotron resonance and the Shubnikov-de Haas effect in two-dimensional electronic system confined to AlAs. Cyclotron resonance data show that the effective mass for (100)-oriented samples (0.5m0) is larger than for (111)-oriented samples (0.41m0). This indicates that the X point ellipsoids with their long axes parallel to the interface are occupied. This may be due to compressive stress in the AlAs. From the temperature and magnetic field dependence of the Shubnikov-de Haas oscillations we have also determined the effective mass (m(111)* = 0.49m0; m(100)* = 0.60m0) and the effective g-factor (g* = 3.1-3.4). We find fairly good agreement between measured and calculated values. © 1987.