Effect of Weak Localization on Microwave Conductivity in Two-Dimensional Superconductors at Absolute Zero
Year: 2023
Type: conference-paper
Abstract: The weak localization correction for the linear absorption spectrum of the two-dimensional s-wave superconductor is calculated at absolute zero.This correction term does not diverge even in a twodimensional system, and its dependence on frequency is similar to that of Mattis-Bardeen's conductivity.The effect of the Coulomb interaction coupled with superconducting fluctuations mainly contributes to the correction term.The excitation energy of the collective mode due to this coupling remains low in a two-dimensional system, and it is proportional to the square root of the wavenumber.The dispersion of this excitation mode is related to the absolute value of the interaction vertex, and therefore affects the magnitude of the weak localization correction terms.
Author: Takanobu Jujo
Institution: Nara Institute of Science and Technology
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Funder: Strong
OpenAlex ID: W4377225251