Piezomodulation spectroscopy: A powerful investigation tool of heterostructures

15 January 1991

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 43 (3) , 2218-2227
https://doi.org/10.1103/physrevb.43.2218

Abstract

We discuss the potential of piezomodulated spectroscopy to identify electron and/or hole states, together with their spatial localizations, in strained epilayers, quantum wells, and superlattices. The potential of the technique is illustrated using several experimental results concerning GaAs/

{Ga}_{x}

{Al}_{1 - x}

As, CdTe/ZnTe, and CdTe/

{Cd}_{x}

{Zn}_{1 - x}

Te heterostructures.

Keywords

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