Pressure induced increase of the exciton phonon interaction in ZnO/(ZnMg)O quantum wells | Zendy

Dawid Jarosz | Zendy; H. Teisseyre | Zendy; Agata Kamińska | Zendy; A. Suchocki | Zendy; A. Kozanecki | Zendy

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Pressure induced increase of the exciton phonon interaction in ZnO/(ZnMg)O quantum wells

Author(s) -

Dawid Jarosz,

H. Teisseyre,

Agata Kamińska,

A. Suchocki,

A. Kozanecki

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943677

Subject(s) - phonon , condensed matter physics , exciton , electric field , quantum well , piezoelectricity , coupling (piping) , materials science , quantum , physics , quantum mechanics , composite material , laser , metallurgy

It is a well-established experimental fact that exciton-phonon coupling is very efficient in ZnO. The intensities of the phonon-replicas in ZnO/(ZnMg)O quantum structures strongly depend on the internal electric field. We performed high-pressure measurements on the single ZnO/(ZnMg)O quantum well. We observed a strong increase of the intensity of the phonon-replicas relative to the zero phonon line. In our opinion this effect is related to pressure induced increase of the strain in quantum structure. As a consequence, an increase of the piezoelectric component of the electric field is observed which leads to an increase of the intensity of the phonon-replicas

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