Measurement of effective mass in AlAs by cyclotron resonance in high magnetic field

✍ Scribed by M. Goiran; J.L. Martin; J. Leotin; R. Planel; S. Askenazy

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 292 KB
• Volume: 177
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(92)90151-h

✦ Synopsis

First cyclotron resonance of electrons in AlAs is presented. The measurements were carried out up to 40T on a high mobility (Jo = 10 500 cm*/V s at 4.2 K) two-dimensional electron gas obtained in a type II heterojunction. The transverse and longitudinal effective masses at the X point of the Brillouin zone deduced from the experiment (m; = 0.44m, and m: = 2.62m,) are in strong disagreement with the commonly used values (m_T = O.l9m,, rnc = l.lm,) [B. Rheinlander, H.