Bound-state formation on a spherical shell: A model for superconductivity of alkali-metal-doped C60

Z. Gedik; S. Ciraci

doi:10.1103/PhysRevB.45.8213

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Bound-state formation on a spherical shell: A model for superconductivity of alkali-metal-doped C60

Z. Gedik, S. Ciraci

DOI 10.1103/PhysRevB.45.8213 · Physical Review B

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Abstract

We show that an attractive interaction between two electrons confined to the surface of a sphere gives rise to a bound state, no matter how weak the interaction is. We explore the similarity between a sphere and a (two-dimensional) plane as far as pairing properties are concerned. We also discuss the relevance of the model to a recently discovered superconductor, alkali-metal-doped C60.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
K3C60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	18	Pressure not reported	unknown
RbxC60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	28	Pressure not reported	unknown
CsxC60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	30	Pressure not reported	unknown