Upper Limit for the Superconducting Transition Temperature in Eliashberg–McMillan Theory

2024/07/29 by M. V. Sadovskii, M. V. Sadovskiǐ · 10 citations
Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Condensed matter physics #Coupling (piping) #Coupling constant #Electron #Limit (mathematics) #Materials science #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconducting transition temperature #Superconductivity #Theoretical and Computational Physics #Thermal conduction #Transition temperature

paper · pdf · doi:10.1134/s0021364024602409

published in Journal of Experimental and Theoretical Physics Letters 120(3), 205-207 (Pleiades Publishing)

openalex publication_date 2024/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present simple qualitative estimates for the maximal superconducting transition temperature, which may be achieved due to electron–phonon coupling in Eliashberg–McMillan theory. It is shown that in the limit of very strong coupling the upper limit for transition temperature is determined in fact by a combination of atomic constants and density of conduction electrons.

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• Superconductivity Near a Quantum Critical Point: Bounds on the Transition Temperature in the γ-Model
• The maximum T c of conventional superconductors at ambient pressure. [europepmc]

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