RAS PhysicsПисьма в Журнал экспериментальной и теоретической физики JETP Letters (Journal of Experimental and Theoretical Physics Letters)

  • ISSN (Print) 0370-274X
  • ISSN (Online) 3034-5766

General scaling behavior of superconductors

PII
S30345766S0370274X25080052-1
DOI
10.7868/S3034576625080052
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 122 / Issue number 3-4
Pages
153-155
Abstract
The physics of high- superconductors, which has been a major topic in condensed matter physics for more than thirty years, reveals some features of conventional superconductors. We analyze the scaling of the condensation energy divided by γ, /γ≃(0)Δ /γ, that equally applicable to both conventional and unconventional high- superconductors. Here (0) is the density of states, Δ is the maximum value of the superconducting gap and γ is the Sommerfeld coefficient. Basing on this observation, we analyze experimental facts that reveal the general scaling properties of both high- and ordinary superconductors, and theoretically explain that the Homes' law ρ∝ σ( ) is applicable to the both types of superconductors. Here σ is the conductivity, is temperature and is the temperature of superconduction phase transition, λ is the zero- penetration depth, and ρ is the superconducting electron density. For the first time, we also explain the reason of violation of the Homes' law. Our theoretical results agree well with experimental facts.
Keywords
Date of publication
29.06.2025
Year of publication
2025
Number of purchasers
0
Views
29

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