Variation of Superconducting Transition Temperature of YSn3 Under Negative Pressure
Tóm tắt
First-principle calculations of YSn3 were performed under both ambient pressure and applied negative hydrostatic pressure. The phonon dispersion relation under all applied pressures was found to have a positive frequency. The superconducting transition temperature (Tc) and average electron-phonon coupling constant (λep) was found to increase with increase in applied negative hydrostatic pressure. The Eliashberg spectral function was also calculated under various applied negative hydrostatic pressures.
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