We report on the experimental determination of the spontaneous polarization of wurtzite-
(Mg,Zn)O by examination of the recombination dynamics of polar ZnO/(Mg,Zn)O quantum wells
(QWs). The thickness-dependent decay time of the unscreened single-exciton states inside the
QWs was modeled by a self-consistent solution of Schrödinger- and Poisson-equation to deduce
the total polarization across the QW for different Mg-contents inside the barriers. By the separation
of the piezoelectric components of the polarization, a linear increase in spontaneous polarization
with increasing Mg-content x of P/x = (0.151 ± 0.015) C/m2 was determined for Mgx Zn1−x O.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:26869 |
| Date | 07 August 2018 |
| Creators | Stölzel, Marko, Müller, Alexander, Benndorf, Gabriele, Lorenz, Michael, Patzig, Christian, Höche, Thomas, Grundmann, Marius |
| Publisher | American Institute of Physics, Universität Leipzig |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 0003-6951, 1077-3118, 192102 |
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