Fullerides of alkaline-earth metals

Chen, Y.; Stepniak, F.; Weaver, J. H.; Chibante, L. P. F.; Smalley, R. E.

doi:10.1103/physrevb.45.8845

Cited by 83 publications

(25 citation statements)

References 18 publications

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“…14 and 15͒ superconductors, which are not polymers. An early study of Mg doped fulleride films reported an insulating behavior for all Mg concentrations, 16 which is in disagreement with our present results.…”

Section: Polymers Of C 60contrasting

confidence: 64%

Structure and properties of the stable two-dimensional conducting polymerMg5C60

et al. 2008

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We present a study on the structural, spectroscopic, conducting, and magnetic properties of Mg 5 C 60 , which is a two-dimensional ͑2D͒ fulleride polymer. The polymer phase is stable up to the exceptionally high temperature of 823 K. The infrared and Raman studies suggest the formation of single bonds between the fulleride ions and possibly Mg-C 60 covalent bonds. Mg 5 C 60 is a metal at ambient temperature, as shown by electron spin resonance and microwave conductivity measurements. The smooth transition from a metallic to a paramagnetic insulator state below 200 K is attributed to Anderson localization driven by structural disorder.

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Section: Polymers Of C 60contrasting

confidence: 64%

Structure and properties of the stable two-dimensional conducting polymerMg5C60

et al. 2008

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“…50 ' 51 In the case of the alkaline earth dopants, two electrons per metal atom M are transferred to the C 6 o balls for low concentrations of metal atoms, while for high concentrations of metal atoms the charge transfer is less than two electrons per alkaline earth ion. In general, the alkaline earth ions are smaller than the corresponding alkali metals in the same row of the periodic table.…”

Section: Exohedral Donor Dopingmentioning

confidence: 99%

Fullerenes

1993

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A review of the structure and properties of fullerenes is presented. Emphasis is given to their behavior as molecular solids. The structure and property modifications produced by alkali-metal doping are summarized, including modification to the electronic structure, lattice modes, transport, and optical properties. Particular emphasis is given to the alkali-metal-doped fullerenes because of their importance as superconductors. A review of the structure and properties of fullerene-based graphene tubules is also given, including a model for their one-dimensional electronic band structure. Potential applications for fullerene-based materials are suggested.

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“…Superconductivity in alkaline-earth intercalated C60 (AE x C6o) was anticipated by Chen et al [2]. Kortan et al observed superconductivity in calcium doped C60.…”

Section: Introductionmentioning

confidence: 79%