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Pressure and magnetic field effects on the binding energy of excitonic states in single and coupled GaAs–AlGaAs quantum wells

✍ Scribed by Carlos L. Beltrán Ríos; N. Porras-Montenegro

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
497 KB
Volume
36
Category
Article
ISSN
0026-2692

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✍ H.S. Ko; S.J. Rhee; Y.M. Kim; W.S. Kim; D.H. Kim; J.H. Bae; Y.S. Kim; J.C. Woo; 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 70 KB

Magneto-photoluminescence (PL) experiments of very thin GaAs/Al 0.3 Ga 0.7 As quantum wells were performed in a magnetic field (B) of up to 20 T. It has been observed that the diamagnetic shift changes abruptly from β B 2 to α B around 5 T as B increases, and both α and β become larger as the well-w