A magnetoluminescence study of quantum wells in an inplane magnetic field

✍ Scribed by M.H. Jeon; K.H. Yoo; M.G. Sung; I.T. Jeong; J.C. Woo; L.R. Ram-Mohan

• Book ID: 104093931
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 688 KB
• Volume: 150
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/j.ssc.2010.07.021

✦ Synopsis

A magnetoluminescence study was performed on GaAs/Al 0.25 Ga 0.75 As quantum wells (QWs) in a magnetic field parallel with the QW layers. The samples were grown by molecular beam epitaxy with 5 different well thicknesses of 4, 10, 18, 26 and 38 monolayers. The photoluminescence measurement was carried out at 5 K in the magnetic field up to 30 T. The band structure of these QWs in the inplane magnetic field was numerically calculated by the finite element method using an 8-band envelope function approximation. The experimental data and the calculated heavy-hole to conduction band transition energies showed a reasonable agreement. As the well width increases, the energy dispersion with respect to the magnetic field in both experimental and theoretical results decreases first and then increases after a minimum dispersion at 10 monolayers.