Metal-Insulator Transition in 2D: Experimental Test of the Two-Parameter Scaling

Details Metal-Insulator Transition in 2D: Experimental Test of the Two-Parameter Scaling Metal-Insulator Transition in 2D: Experimental Test of the Two-Parameter Scaling

2008-02-12

arxiv.org/abs/0802.1629v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures, 1 table

Scientific paper

10.1103/PhysRevLett.100.046405

We report a detailed scaling analysis of resistivity \rho(T,n) measured for several high-mobility 2D electron systems in the vicinity of the 2D metal-insulator transition. We analyzed the data using the two parameter scaling approach and general scaling ideas. This enables us to determine the critical electron density, two critical indices, and temperature dependence for the separatrix in the self-consistent manner. In addition, we reconstruct the empirical scaling function describing a two-parameter surface which fits well the \rho(T,n) data.

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