Theoretical Analysis on Electromagnetic Properties of the Superconducting LaAlO3/SrTiO3 Interface View Full Text


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Article Info

DATE

2022-09-19

AUTHORS

Chen-Xiao Ye, Jian-Tao Che, Tian-Yi Han, Hai Huang

ABSTRACT

The origin of superconductivity and pairing symmetry of order parameter in the LaAlO3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_3$$\end{document}/SrTiO3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_3$$\end{document} interface are still elusive problems up to now. Based on the two-band Ginzburg-Landau theory, we study the electromagnetic properties of this oxide heterostructure with the Neumann boundary conditions. We calculate the temperature dependence of upper critical field in arbitrary direction and critical supercurrent density through the interface. We also compute the upper critical field and superfluid stiffness at different gate voltages. Our theoretical results are in good agreement with the experimental data, which strongly suggests the existence of two-gap s-wave superconductivity in this electron system. More... »

PAGES

3497-3504

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10948-022-06390-7

DOI

http://dx.doi.org/10.1007/s10948-022-06390-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1151125456


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