Coulomb Driven New Bound States at the Integer Quantum Hall States in GaAs/Al(0.3)Ga(0.7)As Single Heterojunctions
Journal Article
·
· Physical Review Letters
Coulomb driven, magneto-optically induced electron and hole bound states from a series of heavily doped GaAs/Al0.3Ga0.7As single heterojunctions (SHJ) are revealed in high magnetic fields. At low magnetic fields ({nu} >2), the photohuninescence spectra display Shubnikov de-Haas type oscillations associated with the empty second subband transition. In the regime of the Landau filling factor {nu} <1 and 1< {nu} <2, we found strong bound states due to Mott type Vocalizations. Since a SHJ has an open valence band structure, these bound states area unique property of the dynamic movement of the valence holes in strong magnetic fields.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 7060
- Report Number(s):
- SAND99-1313J; ON: DE00007060
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters
- Country of Publication:
- United States
- Language:
- English
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