Structure and properties of superconducting and nonsuperconducting alkali‐metal fullerides axc60 (A = Na, K, Rb, or Cs)

John B. Wiley; Shiou‐Mei ‐M Huang; Shinho Cho; François Diederich; Robert L. Whetten; Károly Holczer; Richard B. Kaner

doi:10.1002/masy.19920590133

Structure and properties of superconducting and nonsuperconducting alkali‐metal fullerides a_xc₆₀ (A = Na, K, Rb, or Cs)

John B. Wiley, Shiou‐Mei ‐M Huang, Shinho Cho, François Diederich, Robert L. Whetten, Károly Holczer, Richard B. Kaner

Research output: Contribution to journal › Article › peer-review

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Abstract

Shielding diamagnetism and X‐ray powder diffraction were used to characterize alkali‐metal fullerides of sodium, potassium, rubidium, and cesium. The superconducting phase in both the potassium and rubidium systems has the composition A₃C₆₀ and a face centered cubic structure with alkali metal filling all octahedral and tetrahedral sites of close packed C₆₀, layers. High pressure magnetic susceptibility measurements on K₃C₆₀ showed a negative pressure dependence on the superconducting transition temperature of −0.78 K/kbar. No evidence for superconductivity was observed in either the sodium or cesium systems, even though Na₃C₆₀ appears isostructural with K₃C₆₀ and Rb₃C₆₀.

Original language	English (US)
Pages (from-to)	389-397
Number of pages	9
Journal	Makromolekulare Chemie. Macromolecular Symposia
Volume	59
Issue number	1
DOIs	https://doi.org/10.1002/masy.19920590133
State	Published - Jun 1992
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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title = "Structure and properties of superconducting and nonsuperconducting alkali‐metal fullerides axc60 (A = Na, K, Rb, or Cs)",

abstract = "Shielding diamagnetism and X‐ray powder diffraction were used to characterize alkali‐metal fullerides of sodium, potassium, rubidium, and cesium. The superconducting phase in both the potassium and rubidium systems has the composition A3C60 and a face centered cubic structure with alkali metal filling all octahedral and tetrahedral sites of close packed C60, layers. High pressure magnetic susceptibility measurements on K3C60 showed a negative pressure dependence on the superconducting transition temperature of −0.78 K/kbar. No evidence for superconductivity was observed in either the sodium or cesium systems, even though Na3C60 appears isostructural with K3C60 and Rb3C60.",

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T1 - Structure and properties of superconducting and nonsuperconducting alkali‐metal fullerides axc60 (A = Na, K, Rb, or Cs)

AU - Wiley, John B.

AU - Huang, Shiou‐Mei ‐M

AU - Cho, Shinho

AU - Diederich, François

AU - Whetten, Robert L.

AU - Holczer, Károly

AU - Kaner, Richard B.

PY - 1992/6

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N2 - Shielding diamagnetism and X‐ray powder diffraction were used to characterize alkali‐metal fullerides of sodium, potassium, rubidium, and cesium. The superconducting phase in both the potassium and rubidium systems has the composition A3C60 and a face centered cubic structure with alkali metal filling all octahedral and tetrahedral sites of close packed C60, layers. High pressure magnetic susceptibility measurements on K3C60 showed a negative pressure dependence on the superconducting transition temperature of −0.78 K/kbar. No evidence for superconductivity was observed in either the sodium or cesium systems, even though Na3C60 appears isostructural with K3C60 and Rb3C60.

AB - Shielding diamagnetism and X‐ray powder diffraction were used to characterize alkali‐metal fullerides of sodium, potassium, rubidium, and cesium. The superconducting phase in both the potassium and rubidium systems has the composition A3C60 and a face centered cubic structure with alkali metal filling all octahedral and tetrahedral sites of close packed C60, layers. High pressure magnetic susceptibility measurements on K3C60 showed a negative pressure dependence on the superconducting transition temperature of −0.78 K/kbar. No evidence for superconductivity was observed in either the sodium or cesium systems, even though Na3C60 appears isostructural with K3C60 and Rb3C60.

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Structure and properties of superconducting and nonsuperconducting alkali‐metal fullerides a_xc₆₀ (A = Na, K, Rb, or Cs)

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