Browsing Physics & Atmospheric Science by Author "Neilson, D."
Now showing items 1-5 of 5
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Density dependence of critical magnetic fields at the metal-insulator bifurcation in two dimensions
Geldart, D. J. W.; Neilson, D. (APS through AIP, 2003-01/15)The density dependence of the critical in-plane magnetic field Bc at the bifurcation of the resistivity of two-dimensional electron systems with low levels of disorder is determined using the spin-polarization dependence ... -
Quantum critical behavior in the insulating region of the two-dimensional metal-insulator transition
Geldart, D. J. W.; Neilson, D. (American Physical Society by AIP, 2007-11/15)We show that the quantum critical point associated with the metal-insulator transition phenomenon in two dimensions controls an extended critical region encompassing not only the usual quantum critical sector but also a ... -
Spin correlations in the low-density electron system
Green, F.; Neilson, D.; Swierkowski, L.; Szymanski, J.; Geldart, D. J. W. (1993-02/15)The authors have calculated the spin susceptibility x(q,) within a microscopic model over the full range of densities of the electron liquid in the paramagnetic state. Electron-electron interactions are described by static ... -
Temperature dependent resistivity in the low-resistance region for diffusive transport in two dimensions
Geldart, D. J. W.; Neilson, D. (APS through AIP, 2004-12/15)The interpretation of the metal-insulator transition phenomena in disordered two-dimensional electron systems in terms of density-dependent scaling variables suggests the existence of a quantum critical point at some ... -
Two-component scaling near the metal-insulator bifurcation in two dimensions
Geldart, D. J. W.; Neilson, D. (APS through AIP, 2003-05/15)We consider a two-component scaling picture for the resistivity of two-dimensional (2D) weakly disordered interacting electron systems at low temperature with the aim of describing both the vicinity of the bifurcation and ...