The supercurrent diode effect and nonreciprocal paraconductivity due to the chiral structure of nanotubes

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Bibliographic Details
Main Authors:	He, James Jun, Tanaka, Yukio, Nagaosa, Naoto
Format:	Preprint
Published:	2022
Subjects:	Superconductivity
Online Access:	Acceder al recurso
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_version_	1866909072465330176
author	He, James Jun Tanaka, Yukio Nagaosa, Naoto
author_facet	He, James Jun Tanaka, Yukio Nagaosa, Naoto
contents	The research interest in the supercurrent diode effect (SDE) has been growing. It has been found in various kinds of systems, in a large part of which it may be understood by combining spin-orbit coupling and Zeeman field. Here, we show that there exists another mechanism of generating SDE in chiral nanotubes that trap magnetic fluxes, without spin-orbit coupling or Zeeman field. We further show that the same generalized Ginzburg-Landau theory leads to nonreciprocal paraconductivity (NPC) near the transition temperature. The main features of both the SDE and the NPC are revealed by their parameter dependence. Our study suggests a new kind of platforms to explore nonreciprocal properties of superconducting materials. It also provides a theoretical link between the SDE and the NPC, which were often studied separately.
format	Preprint
id	arxiv_https___arxiv_org_abs_2212_02183
institution	arXiv
publishDate	2022
record_format	arxiv
spellingShingle	The supercurrent diode effect and nonreciprocal paraconductivity due to the chiral structure of nanotubes He, James Jun Tanaka, Yukio Nagaosa, Naoto Superconductivity The research interest in the supercurrent diode effect (SDE) has been growing. It has been found in various kinds of systems, in a large part of which it may be understood by combining spin-orbit coupling and Zeeman field. Here, we show that there exists another mechanism of generating SDE in chiral nanotubes that trap magnetic fluxes, without spin-orbit coupling or Zeeman field. We further show that the same generalized Ginzburg-Landau theory leads to nonreciprocal paraconductivity (NPC) near the transition temperature. The main features of both the SDE and the NPC are revealed by their parameter dependence. Our study suggests a new kind of platforms to explore nonreciprocal properties of superconducting materials. It also provides a theoretical link between the SDE and the NPC, which were often studied separately.
title	The supercurrent diode effect and nonreciprocal paraconductivity due to the chiral structure of nanotubes
topic	Superconductivity
url	https://arxiv.org/abs/2212.02183

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