On the Instability of the Electron–Hole System in Coupled Quantum Wells

Autor: I. Ya. Polishchuk, V. S. Babichenko
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