The Origin of an Inflection Point on the Temperature Dependence of the London Penetration Depth in Hole-Doped Cuprate High-Temperature Superconductors

A scenario of the formation of an experimentally observed inflection point on the temperature dependence of the London penetration depth λ in cuprate high-temperature superconductors (HTSCs) with optimal hole doping is discussed within the spin-polaron concept. It is shown that the reason for the ap...

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Bibliographic Details
Published inJournal of experimental and theoretical physics Vol. 133; no. 3; pp. 351 - 359
Main Authors Komarov, K. K., Dzebisashvili, D. M.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2021
Springer
Springer Nature B.V
Subjects
Classical and Quantum Gravitation
Disorder
Elementary excitations
Elementary Particles
Energy spectra
High temperature superconductors
Magnetic fields
Order
Particle and Nuclear Physics
Penetration depth
Phase Transition in Condensed System
Physics
Physics and Astronomy
Polarons
Quantum Field Theory
Relativity Theory
Solid State Physics
Temperature
Temperature dependence
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Summary:A scenario of the formation of an experimentally observed inflection point on the temperature dependence of the London penetration depth λ in cuprate high-temperature superconductors (HTSCs) with optimal hole doping is discussed within the spin-polaron concept. It is shown that the reason for the appearance of an inflection point on the 1/λ 2 ( T ) dependence is due to the features of the energy spectrum of spin-polaron quasiparticles in the superconducting phase, as well as to the specific temperature dependence of their spectral density.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776121080021