Condensed Matter Physics Seminar
Thursday, October 26, 2000, 2 p.m.
Plant Sciences Building, Room 1130
Folklore and Experimental Facts About 2D "Metallic State"
Vladimir Pudalov
(Lebedev Physics Institute, Moscow and Rutgers University, NJ)
Abstract: The phenomenon of the metallic-like strong temperature
dependence of the conductivity is observed by now in about 10 different
material systems. This 10-years old story remains in the focus of
interest because it raises a question on the ground state of the strongly
interacting and disordered 2D carrier system. In my talk, I shall
review critically the main experimental data, discuss their interpretation,
and discuss whether or not any firm conclusions can be drawn out
of them. I shall also give a brief review of the proposed theoretical
models and compare them with experimental data. I shall demonstrate
that the puzzling effect of the metallic-like conduction is irrelevant
to the quantum physics and is most probably an (unknown) semi-classical
effect.
Host: Sankar Das Sarma
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