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arXiv · 1210.4415

Quantum Phase Transition in a Clean Two-Dimensional Electron System

T. R. Kirkpatrick·D. Belitz
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Abstract

A quantum phase transition that was recently observed in a high-mobility silicon MOSFET is analyzed in terms of a scaling theory. The most striking characteristic of the transition is a divergence of the thermopower, according to an inverse linear law, as a critical value of the electron density is approached. A scaling description of this transition yields predictions about the critical behavior of other observables, e.g., the specific heat. We also explore the possibility that this transition realizes a recently predicted transition from a Fermi liquid to a non-Fermi-liquid state.

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T. R. Kirkpatrick, D. Belitz. 2012-10-16. Quantum Phase Transition in a Clean Two-Dimensional Electron System. https://doi.org/10.1103/physrevlett.110.035702

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