Nonparabolic behavior of GaSb-AlSb quantum wells under hydrostatic pressure. - Archive ouverte HAL Access content directly
Journal Articles Physical Review B: Condensed Matter (1978-1997) Year : 1987

Nonparabolic behavior of GaSb-AlSb quantum wells under hydrostatic pressure.

Abstract

We present a photoluminescence investigation of the electronic properties of a strained GaSb-AlSb quantum well under hydrostatic pressure. Our experiment, performed at liquid-helium temperature, permits us to measure a pressure shift of the quantized exciton smaller than the GaSb band-gap shift. Such an effect is analyzed in the framework of a model calculation which takes account of the nonparabolicity and of the change of the quantized Rydberg (R*) versus pressure. We find 1/R*(dR*/dP)=∼1%/kbar. We estimate a valence-band offset ΔEv∼40 meV.
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hal-01175485 , version 1 (10-07-2015)

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Pierre Lefebvre, Bernard Gil, Jacques Allègre, Henry Mathieu, Raisin Claude. Nonparabolic behavior of GaSb-AlSb quantum wells under hydrostatic pressure.. Physical Review B: Condensed Matter (1978-1997), 1987, 35 (3), pp.6. ⟨10.1103/PhysRevB.35.1230⟩. ⟨hal-01175485⟩
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