Phase-Tunable Thermal Rectification in the Topological SQUIPT. Bours, L., Sothmann, B., Carrega, M., Strambini, E., Braggio, A., Hankiewicz, E., M., Molenkamp, L., W., & Giazotto, F. Physical Review Applied, 11(4):044073, American Physical Society, 4, 2019. ![Phase-Tunable Thermal Rectification in the Topological SQUIPT [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website doi abstract bibtex We theoretically explore the behavior of thermal transport in the topological SQUIPT, in the linear and nonlinear regime. The device consists of a topological Josephson junction based on a two-dimensional topological insulator in contact with two superconducting leads, and a probe tunnel coupled to the topological edge states of the junction. We compare the performance of a normal metal and a graphene probe, showing that the topological SQUIPT behaves as a passive thermal rectifier and that it can reach a rectification coefficient of up to $~ 145\%$ with the normal metal probe. Moreover, the interplay between the superconducting leads and the helical edge states leads to a unique behaviour due to a Doppler shift like effect, that allows one to influence quasi-particle transport through the edge channels via the magnetic flux that penetrates the junction. Exploiting this effect, we can greatly enhance the rectification coefficient for temperatures below the critical temperature $T_\textC$ in an active rectification scheme.
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title = {Phase-Tunable Thermal Rectification in the Topological SQUIPT},
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abstract = {We theoretically explore the behavior of thermal transport in the topological SQUIPT, in the linear and nonlinear regime. The device consists of a topological Josephson junction based on a two-dimensional topological insulator in contact with two superconducting leads, and a probe tunnel coupled to the topological edge states of the junction. We compare the performance of a normal metal and a graphene probe, showing that the topological SQUIPT behaves as a passive thermal rectifier and that it can reach a rectification coefficient of up to $~ 145\%$ with the normal metal probe. Moreover, the interplay between the superconducting leads and the helical edge states leads to a unique behaviour due to a Doppler shift like effect, that allows one to influence quasi-particle transport through the edge channels via the magnetic flux that penetrates the junction. Exploiting this effect, we can greatly enhance the rectification coefficient for temperatures below the critical temperature $T_\textC$ in an active rectification scheme.},
bibtype = {article},
author = {Bours, Lennart and Sothmann, Björn and Carrega, Matteo and Strambini, Elia and Braggio, Alessandro and Hankiewicz, Ewelina M and Molenkamp, Laurens W and Giazotto, Francesco},
doi = {10.1103/PhysRevApplied.11.044073},
journal = {Physical Review Applied},
number = {4}
}
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