SciPost logo

Doping-dependent competition between superconductivity and polycrystalline charge density waves

Sergio Caprara, Marco Grilli, José Lorenzana, Brigitte Leridon

SciPost Phys. 8, 003 (2020) · published 8 January 2020

Abstract

From systematic analysis of the high pulsed magnetic field resistance data of La$_{2-x}$Sr$_x$CuO$_{4}$ thin films, we extract an experimental phase diagram for several doping values ranging from the very underdoped to the very overdoped regimes. Our analysis highlights a competition between charge density waves and superconductivity which is ubiquitous between $x=0.08$ and $x=0.19$ and produces the previously observed double step transition. When suppressed by a strong magnetic field, superconductivity is resilient for two specific doping ranges centered around respectively $x\approx 0.09$ and $x\approx 0.19$ and the characteristic temperature for the onset of the competing charge density wave phase is found to vanish above $x = 0.19$. At $x=1/8$ the two phases are found to coexist exactly at zero magnetic field.

Cited by 12

Crossref Cited-by

Ontology / Topics

See full Ontology or Topics database.

Superconductivity/superconductors Thin films

Authors / Affiliations: mappings to Contributors and Organizations

See all Organizations.
Funders for the research work leading to this publication