A hybrid Al 0.10Ga 0.90As/AlAs bilayer electron system with tunable g-factor

Applied Physics Letters

Volumn 84, Issue 19, 2004, Pages 3837-3839

  De Poortere, E P ^a   Shayegan, M ^a  

^a Princeton University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BRILLOUIN ZONES; ENERGY RATIOS; LATTICE MISMATCH; ZEEMAN ENERGY;

BRILLOUIN SCATTERING; COHERENT LIGHT; ELECTROSTATICS; HELIUM; HETEROJUNCTIONS; MAGNETIC FIELD EFFECTS; MAGNETORESISTANCE; MOLECULAR BEAM EPITAXY; OSCILLATIONS; SEMICONDUCTING ALUMINUM COMPOUNDS; SEMICONDUCTOR DOPING;

SEMICONDUCTOR QUANTUM WELLS;

EID: 2942607961     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1745111     Document Type: Article

References (13)

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8. More precisely, we attempted to align the first energy levels of the conduction bands within each QW.
9. A. F. W. van de Stadt, P. M. Koenraad, J. A. A. J. Perenboom, and J. H. Wolter, Surf. Sci. 361-362, 521 (1996), and references therein.
10. S. P. Shukla, M. Shayegan, S. R. Parihar, S. A. Lyon, N. R. Cooper, and A. A. Kiselev, Phys. Rev. B 61, 4469 (2000).
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12. For details on how to derive g* from coincidence angles, see S. J. Papadakis, E. P. De Poortere, and M. Shayegan, Phys. Rev. B 59, R12743 (1999). From our data, we expect the l = 2 coincidence to occur at θ ≃ 26°. However, little variation is expected between our θ=0°, 14°, and 26° traces, since the corresponding cos θ values are all close to 1.
13. Recently, a bilayer AlAs QW structure with asymmetric m* and g* has also been demonstrated by K. Vakili, Y. P. Shkolnikov, E. Tutuc, E. P. De Poortere, and M. Shayegan [http://xxx.lanl.gov/abs/cond-mat/0309385 (2003)]. In this device, electrons in one AlAs QW populate the in-plane valley, while electrons in the other QW reside in an out-of-plane valley.