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Crystallization in mass-asymmetric electron-hole bilayers

P. Ludwig·A. Filinov·Yu. E. Lozovik·H. Stolz·M. Bonitz
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Abstract

We consider a \textit{mass-asymmetric} electron and hole bilayer. Electron and hole Coulomb correlations and electron and hole quantum effects are treated on first princles by path integral Monte Carlo methods. For a fixed layer separation we vary the mass ratio $M$ of holes and electrons between 1 and 100 and analyze the structural changes in the system. While, for the chosen density, the electrons are in a nearly homogeneous state, the hole arrangement changes from homogeneous to localized, with increasing $M$ which is verified for both, mesoscopic bilayers in a parabolic trap and for a macroscopic system.

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P. Ludwig, A. Filinov, Yu. E. Lozovik, H. Stolz, M. Bonitz. 2006-11-21. Crystallization in mass-asymmetric electron-hole bilayers. https://doi.org/10.1002/ctpp.200710045

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