
TY  - JOUR
A1  - Swierkowski, L 
A1  - Neilson, D 
A1  - Szymanski, J 
T1  - Electron Liquid in Double-layer Structures
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1993
VL  - 46
IS  - 3
SP  - 423
EP  - 434
KW  - 
UR  - https://doi.org/10.1071/PH930423 
N2  - Two layers of electrons or holes trapped at the adjacent interfaces of a gallium arsenide heterostructure can interact through the Coulomb interaction; this leads to a rich phase diagram of ground states, some of which are inhomogeneous in density. The cause of this is associated with each layer's acting as a polarisable background for the other, making it much easier for inhomogeneous configurations to be stable. Even in the uniform liquid phase the presence of a second layer can qualitatively change the nature of the low lying excitation spectrum and lead to large many-body effects in the spectrum, even at very long wavelengths. 
ER  -

