The phenomenology of overdoped high Tc uperconductors can be described by a one band d wave Eliashberg theory where the mechanism of superconducting coupling is mediated by antiferromagnetic spin fl uctuations and whose characteristic energy Ω0 scales with Tc according to the empirical law Ω0 = 5.8 kBTc. This model presents universal characteristics that are independent of the critical temperature such as the link between the s and d components of electron boson coupling constants and the invariance of the ratio 2Δ/kBTc. This situation arises from the particular structure of Eliashberg's equations which, despite being non-linear equations, present solutions with these simple properties

The link between s and d components of electron boson coupling constants in one band d wave Eliashberg theory for high Tc superconductors / Ummarino, G. A.. - In: ANNALS OF MATHEMATICS AND PHYSICS. - ISSN 2689-7636. - 6:1(2023), pp. 048-051. [10.17352/amp.000077]

The link between s and d components of electron boson coupling constants in one band d wave Eliashberg theory for high Tc superconductors

Ummarino G. A.
2023

Abstract

The phenomenology of overdoped high Tc uperconductors can be described by a one band d wave Eliashberg theory where the mechanism of superconducting coupling is mediated by antiferromagnetic spin fl uctuations and whose characteristic energy Ω0 scales with Tc according to the empirical law Ω0 = 5.8 kBTc. This model presents universal characteristics that are independent of the critical temperature such as the link between the s and d components of electron boson coupling constants and the invariance of the ratio 2Δ/kBTc. This situation arises from the particular structure of Eliashberg's equations which, despite being non-linear equations, present solutions with these simple properties
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2977971