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Dynamical Screening and Superconducting State in Intercalated Layered Metallochloronitrides

A. Bill·H. Morawitz·V. Z. Kresin
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Abstract

An essential property of layered systems is the dynamical nature of the screened Coulomb interaction. Low energy collective modes appear as a consequence of the layering and provide for a superconducting-pairing channel in addition to the electron-phonon induced attractive interaction. We show that taking into account this feature allows to explain the high critical temperatures (Tc~26K) observed in recently discovered intercalated metallochloronitrides. The exchange of acoustic plasmons between carriers leads to a significant enhancement of the superconducting critical temperature that is in agreement with the experimental observations.

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A. Bill, H. Morawitz, V. Z. Kresin. 2002-12-02. Dynamical Screening and Superconducting State in Intercalated Layered Metallochloronitrides. https://doi.org/10.1103/physrevb.66.100501

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