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A possible explanation of pressure dependence of critical temperature T_c of alkali doped C₆₀ superconductors

Rajiv Kumar Pandey

Department of Physics, Ideal Institute of Technology, Govindpuram, Ghaziabad – 201003, U.P., India

https://doi.org/10.1142/S0217979215500034Cited by:0 (Source: Crossref)

Abstract

The pressure dependent changes in transition temperature (T_c) of alkali doped C₆₀ superconductor has been studied theoretically considering the combination of phonon mediated mechanism and high energy electronic interaction mechanism. The latter mechanism involves bond polarization in interaction with conduction electrons. The expression for T_c, isotope effect coefficient (α) and (dT_c/dP)_P has been obtained to explain the observed experimental results of alkali doped C₆₀. A good agreement has been found in experimental (T_c) and (dT_c/dP)_{P = 0} values and calculated values.

Keywords:

PACS: 72.82.Rj, 74.20.Mn, 74.62.Fj

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