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arXiv · 0710.3211

Universal Scaling in Non-equilibrium Transport Through a Single-Channel Kondo Dot

M. Grobis·I. G. Rau·R. M. Potok·H. Shtrikman·D. Goldhaber-Gordon
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Abstract

Scaling laws and universality play an important role in our understanding of critical phenomena and the Kondo effect. Here we present measurements of non-equilibrium transport through a single-channel Kondo quantum dot at low temperature and bias. We find that the low-energy Kondo conductance is consistent with universality between temperature and bias and characterized by a quadratic scaling exponent, as expected for the spin-1/2 Kondo effect. The non-equilibrium Kondo transport measurements are well-described by a universal scaling function with two scaling parameters.

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M. Grobis, I. G. Rau, R. M. Potok, H. Shtrikman, D. Goldhaber-Gordon. 2008-04-30. Universal Scaling in Non-equilibrium Transport Through a Single-Channel Kondo Dot. https://doi.org/10.1103/physrevlett.100.246601

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