Influence of heterointerface atomic structure and defects on second-harmonic generation
- 14 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (24) , 3579-3582
- https://doi.org/10.1103/physrevlett.69.3579
Abstract
Second-harmonic spectroscopy is shown to be sensitive to interfacial electronic traps, lattice relaxation and buried surface reconstruction in ZnSe/GaAs(001) heterostructures. Newly developed photomodulation-second-harmonic-generation experiments reveal that the interfacial region contains predominantly hole traps, and that the density of these traps is substantially lower for 3×1 buried surface reconstructed samples.Keywords
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