Superconducting transition temperatures from anisotropic interactions

G. D. Mahan

doi:10.1103/PhysRevB.51.16452

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Superconducting transition temperatures from anisotropic interactions

G. D. Mahan

DOI 10.1103/PhysRevB.51.16452 · Physical Review B

T1

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Abstract

The anisotropic electron-phonon interaction is used to calculate the transition temperature Tc of a superconductor. We derive constraints on the maximum value of the anisotropic interaction, and use these extremal values to calculate the maximum increase in Tc from the anisotropy. Calculations are done for electrons on a two-dimensional square lattice using an Einstein model for phonons.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	63	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	unknown