Experimental tests for the relevance of two-level systems for electron dephasing

Details Experimental tests for the relevance of two-level systems for electron dephasing Experimental tests for the relevance of two-level systems for electron dephasing

2000-10-17

arxiv.org/abs/cond-mat/0010228v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevB.63.201401

The relevance of tunneling two-level systems (TLS) for electron dephasing in metals is analyzed. We demonstrate that if the concentration of TLS is sufficient to cause the observed dephasing rate, one also should expect quite substantial effects in the specific heat and ultrasound attenuation. In both cases TLS contribution should dominate the electronic one at low enough temperatures.

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