Far-infrared magnetoabsorption study of weakly bound electrons in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="normal">GaAs</mi><mo>/</mo><mrow><msub><mrow><mi mathvariant="normal">Al</mi></mrow><mrow><mi>x</mi></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Ga</mi></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></mrow><mi mathvariant="normal">As</mi></math></span> multiple quantum wells

E. Glaser; B. V. Shanabrook; R. L. Hawkins; W. Beard; J. -M. Mercy; B. D. McCombe; D. Musser

doi:10.1103/PhysRevB.36.8185

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Far-infrared magnetoabsorption study of weakly bound electrons in $GaAs / {Al}_{x} {Ga}_{1 - x} As$ multiple quantum wells

E. Glaser, B. V. Shanabrook, R. L. Hawkins, W. Beard, J. -M. Mercy, B. D. McCombe, and D. Musser

Phys. Rev. B 36, 8185(R) – Published 15 November 1987

Abstract

Far-infrared magnetoabsorption experiments have been performed at 4.2 K on $GaAs / {Al}_{x} {Ga}_{1 - x} As$ multiple-quantum-well (MQW) heterostructures that were selectively doped with Si donors in the centers of the quantum wells and barrier layers. Data were obtained for several values of dopant concentration in the barriers. The results provide strong evidence for the binding of electrons in the wells to positively charged ions in the barriers.

Received 24 August 1987

DOI:https://doi.org/10.1103/PhysRevB.36.8185

Authors & Affiliations

E. Glaser, B. V. Shanabrook, R. L. Hawkins^*, and W. Beard^†

Naval Research Laboratory, Washington, D.C. 20375-5000

J. -M. Mercy and B. D. McCombe

Department of Physics and Astronomy, State University of New York at Buffalo, Buffalo, New York 14260

D. Musser

Martin-Marietta Laboratories, Martin-Marietta Corporation, 1450 South Rolling Road, Baltimore, Maryland 21227

^*Present address: Air Force Geophysics Laboratory (AFGL/OPI), Hanscom AFB, MA 01731.
^†Present address: Laboratory for Physical Sciences, Department of Physics and Astronomy, University of Maryland, 4938 College Avenue, College Park, MD 20740.

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Vol. 36, Iss. 15 — 15 November 1987

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