Phase-coherent heat circulators with normal or superconducting contacts
Artikel i vetenskaplig tidskrift, 2021

We investigate heat circulators where a phase coherent region is contacted by three leads that are either normal- or superconducting. A magnetic field, and potentially the superconducting phases, allow to control the preferential direction of the heat flow between the three-different temperature-biased contacts. The main goal of this study is to analyze the requirements for heat circulation in nonideal devices, in particular focusing on sample-to-sample variations. Quite generally, we find that the circulation performance of the devices is good as long as only a few transport channels are involved. We compare the performance of circulators with normal conducting contacts to those with superconducting contacts and find that the circulation coefficients are essentially unchanged.


Matteo Acciai

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Fatemeh Hajiloo

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Fabian Hassler

RWTH Aachen University

Janine Splettstoesser

Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik

Physical Review B

2469-9950 (ISSN) 2469-9969 (eISSN)

Vol. 103 8 085409

Värmeströmsfluktuationer och dens inverkan på lokala temperaturer och potentialer

Vetenskapsrådet (VR) (2018-05061), 2019-01-01 -- 2022-12-31.


Nanovetenskap och nanoteknik



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