Dynamical Screening and Superconducting State in Intercalated Layered Metallochloronitrides

Details Dynamical Screening and Superconducting State in Intercalated Layered Metallochloronitrides Dynamical Screening and Superconducting State in Intercalated Layered Metallochloronitrides

2002-04-26

arxiv.org/abs/cond-mat/0204580v2

Phys.Rev. B 66, 100501(R) (2002)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevB.66.100501

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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