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Fermi blockade of the strong electron-phonon interaction in modelled optimally doped high temperature superconductors.

作者信息

Mishchenko Andrey S, Tupitsyn Igor S, Nagaosa Naoto, Prokof'ev Nikolay

机构信息

RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, 351-0198, Japan.

Department of Physics, University of Massachusetts, Amherst, MA, 01003, USA.

出版信息

Sci Rep. 2021 May 6;11(1):9699. doi: 10.1038/s41598-021-89059-w.

DOI:10.1038/s41598-021-89059-w
PMID:33958643
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8102534/
Abstract

We study how manifestations of strong electron-phonon interaction depend on the carrier concentration by solving the two-dimensional Holstein model for the spin-polarized fermions using an approximation free bold-line diagrammatic Monte Carlo method. We show that the strong electron-phonon interaction, obviously present at very small Fermion concentration, is masked by the Fermi blockade effects and Migdal's theorem to the extent that it manifests itself as moderate one at large carriers densities. Suppression of strong electron-phonon interaction fingerprints is in agreement with experimental observations in doped high temperature superconductors.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/18d0868b99e4/41598_2021_89059_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/977deaa4cdc5/41598_2021_89059_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/ce6c05a91f67/41598_2021_89059_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/015541b504ee/41598_2021_89059_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/18f3cf465a92/41598_2021_89059_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/18d0868b99e4/41598_2021_89059_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/977deaa4cdc5/41598_2021_89059_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/ce6c05a91f67/41598_2021_89059_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/015541b504ee/41598_2021_89059_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/18f3cf465a92/41598_2021_89059_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2633/8102534/18d0868b99e4/41598_2021_89059_Fig5_HTML.jpg

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本文引用的文献

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A New Landscape of Multiple Dispersion Kinks in a High-T Cuprate Superconductor.高 Tc 铜酸盐超导体中多重弥散扭结的新景观。
Sci Rep. 2017 Jul 6;7(1):4830. doi: 10.1038/s41598-017-04983-0.
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