H/T Scaling of the Magnetoconductance in Two Dimensions near the Conductor-Insulator Transition

Abstract

For an electron density near the H=0 insulator-to-conductor transition, the magnetoconductivity of the low-temperature conducting phase in high-mobility silicon MOSFETs is consistent with the form $Δσ(H_{||},T)\equivσ(H_{||},T)-σ(0,T) = f(H_{||}/T)$ for magnetic fields $H_{||}$ applied parallel to the plane of the electron system. This sets a valuable constraint on theory and provides further evidence that the electron spin is central to the anomalous H=0 conducting phase in two dimensions.

References updated and comparison with recent theory added