First-principles study of electron-phonon superconductivity in YSn3

S. B. Dugdale

doi:10.1103/PhysRevB.83.012502

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First-principles study of electron-phonon superconductivity in YSn3

S. B. Dugdale

DOI 10.1103/PhysRevB.83.012502 · Physical Review B

T1

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Abstract

First-principles calculations of the cubic intermetallic compound YSn3 indicate that the superconductivity it exhibits below 7 K can be explained by intermediate strength conventional electron-phonon coupling. With a reasonable value for the Coulomb pseudopotential μ*=0.12, and the calculated electron-phonon coupling constant of 0.99, the McMillan formula predicts a Tc of approximately 6 K.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YSn3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.93	Pressure not reported	unknown
YSn3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7	Pressure not reported	unknown
LaSn3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	6.25	Pressure not reported	unknown