Inversion of K$_3$C$_{60}$ Reflectance Data

F. Marsiglio; T. Startseva; J. P. Carbotte

doi:10.1016/s0375-9601(98)00373-9

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arXiv · cond-mat/9802021

Inversion of K$_3$C$_{60}$ Reflectance Data

F. Marsiglio·T. Startseva·J. P. Carbotte

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Abstract

We outline a procedure for obtaining the electron-phonon spectral density by inversion of optical conductivity data, a process very similar in spirit to the McMillan-Rowell inversion of tunelling data. We assume both electron-impurity (elastic) and electron-phonon (inelastic) scattering processes. This procedure has the advantage that it can be utilized in the normal state. Furthermore, a very good qualitative result can be obtained explicitly, without iteration. We illustrate this technique on recently acquired far-infrared data in K$_3$C$_{60}$. We show that the electron-phonon interaction is most likely responsible for superconductivity in these materials.

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F. Marsiglio, T. Startseva, J. P. Carbotte. 1998-02-02. Inversion of K$_3$C$_{60}$ Reflectance Data. https://doi.org/10.1016/s0375-9601(98)00373-9

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