On Possible Coexistence of Superconductivity and Charge Density Wave in Hole Doped C$_{60}$
| dc.creator | Sarker, Sanjoy K. | |
| dc.date | 2001-11-26 | |
| dc.date.accessioned | 2026-07-07T02:43:41Z | |
| dc.date.available | 2026-07-07T02:43:41Z | |
| dc.description | We study metallic behavior and superconductivity in C$_{60}$ materials in terms of a tight binding model characterized by an intramolecular, nonretarded attraction. It was shown previously that, at intermediate coupling, the model possesees a state in which s-wave superconductivity coexists with a charge density wave, the latter stabilized by intersite repulsion. The CDW causes $T_c$ to decrease near half filling. We examine the conditions under which such a state may exist in C$_{60}$. The key issue is the role of metallic screening which is treated in a parameter-free fashion. We show that screening is strong enough to stabilize a conventional (i.e., without a CDW) state in electron-doped C$_{60}$ and A$_3$C$_{60}$. But in hole-doped C$_{60}$, for which $T_c$ peaks away from half filling, a CDW-superconductor can not be ruled out. We discuss some normal state anomalies for such a state. | |
| dc.description | 8pages, 3 Postscript figures, ssarker@bama.ua.edu | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0111500 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0111500 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/18589 | |
| dc.subject | Condensed Matter | |
| dc.title | On Possible Coexistence of Superconductivity and Charge Density Wave in Hole Doped C$_{60}$ | |
| dc.type | text |