Showing 2004Show all
2 papers · 1 filter
cond-mat.mtrl-sci2004
Metric Tensor Formulation of Strain in Density-Functional Perturbation Theory
D. R. Hamann, Xifan Wu, Karin M. Rabe +1
The direct calculation of the elastic and piezoelectric tensors of solids can be accomplished by treating homogeneous strain within the framework of density-functional perturbation…
cond-mat.mes-hall2004
2D Metal-Insulator transition as a percolation transition
S. Das Sarma, M. P. Lilly, E. H. Hwang +3
By carefully analyzing the low temperature density dependence of 2D conductivity in undoped high mobility n-GaAs heterostructures, we conclude that the 2D metal-insulator transitio…