2 papers
cond-mat1996
Exchange Instabilities in Semiconductor Double Quantum Well Systems
Lian Zheng, M. W. Ortalano, S. Das Sarma
We consider various exchange-driven electronic instabilities in semiconductor double-layer systems in the absence of any external magnetic field. We establish that there is no exch…
cond-mat1996
Realistic Calculations of Correlated Incompressible Electronic States in GaAs--Al_{x}Ga_{1-x}As Heterostructures and Quantum Wells
M. W. Ortalano, Song He, S. Das Sarma
We perform an exact spherical geometry finite-size diagonalization calculation for the fractional quantum Hall ground state in three different experimentally relevant GaAs-Al_{x}Ga…