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arXiv · 1711.02617

Seebeck effect on a weak link between Fermi and non-Fermi liquids

T. K. T. Nguyen·M. N. Kiselev
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Abstract

We propose a model describing Seebeck effect on a weak link between two quantum systems with fine-tunable ground states of Fermi and Non-Fermi liquid origin. The experimental realization of the model can be achieved by utilizing the quantum devices operating in the Integer Quantum Hall regime [Z. Iftikhar et al, Nature 526, 233 (2015)] designed for detection of macroscopic quantum charged states in multi-channel Kondo systems. We present a theory of thermo-electric transport through hybrid quantum devices constructed from quantum dot - quantum point contact building blocks. We discuss pronounced effects in the temperature and gate voltage dependence of thermoelectric power associated with a competition between Fermi and Non-Fermi liquid behaviors. High controllability of the device allows to fine-tune the system to different regimes described by multi-channel and multi-impurity Kondo models.

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T. K. T. Nguyen, M. N. Kiselev. 2017-11-07. Seebeck effect on a weak link between Fermi and non-Fermi liquids. https://doi.org/10.1103/physrevb.97.085403

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