On the Instability of the Electron–Hole System in Coupled Quantum Wells
Autor: | I. Ya. Polishchuk, V. S. Babichenko |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Journal of Low Temperature Physics. 180:153-160 |
ISSN: | 1573-7357 0022-2291 |
DOI: | 10.1007/s10909-015-1278-x |
Popis: | It is shown that the homogeneous state of the spatially separated electrons and holes in coupled quantum wells (CQW) is instable if the layer charge density is smaller than the critical value $$n_{c}$$ specified by the parameters of the CQW. The effect is due to the many-body Coulomb correlations that provide the positive compressibility. The instability results in the formation of the inhomogeneous system that comprises the liquid electron–hole drops. |
Databáze: | OpenAIRE |
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