Molecular dynamics of C60 in superconducting Na2CsC60

Luigi Cristofolini; Konstantinos Vavekis; Kosmas Prassides; A. José Dianoux; Mayumi Kosaka; Ichiro Hirosawa; Katsumi Tanigaki

doi:10.1016/0921-4526(96)00245-1

Molecular dynamics of C₆₀ in superconducting Na₂CsC₆₀

Luigi Cristofolini, Konstantinos Vavekis, Kosmas Prassides, A. José Dianoux, Mayumi Kosaka, Ichiro Hirosawa, Katsumi Tanigaki

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

9 Citations (Scopus)

Abstract

We have measured the low-energy inelastic neutron scattering spectra of superconducting Na₂CsC₆₀ in the temperature range 100-350 K. Well-defined librational peaks are observed at 2.7(1) meV; their position and width are temperature independent. They survive well above the order-disorder transition at 299 K. A quasielastic feature with a width 1.03(6) meV at an average scattering vector of 1.09 Å^-1 is observed at 350 K, arising from diffusive motion of the C^3-₆₀ ions. Evidence is found for influence of the Na⁺ ions on the rotational motion of the C^3-₆₀ ions.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	226
Issue number	1-3
DOIs	https://doi.org/10.1016/0921-4526(96)00245-1
Publication status	Published - 1996 Aug 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0921-4526(96)00245-1

Cite this

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title = "Molecular dynamics of C60 in superconducting Na2CsC60",

abstract = "We have measured the low-energy inelastic neutron scattering spectra of superconducting Na2CsC60 in the temperature range 100-350 K. Well-defined librational peaks are observed at 2.7(1) meV; their position and width are temperature independent. They survive well above the order-disorder transition at 299 K. A quasielastic feature with a width 1.03(6) meV at an average scattering vector of 1.09 {\AA}-1 is observed at 350 K, arising from diffusive motion of the C3-60 ions. Evidence is found for influence of the Na+ ions on the rotational motion of the C3-60 ions.",

author = "Luigi Cristofolini and Konstantinos Vavekis and Kosmas Prassides and Dianoux, {A. Jos{\'e}} and Mayumi Kosaka and Ichiro Hirosawa and Katsumi Tanigaki",

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T1 - Molecular dynamics of C60 in superconducting Na2CsC60

AU - Cristofolini, Luigi

AU - Vavekis, Konstantinos

AU - Prassides, Kosmas

AU - Dianoux, A. José

AU - Kosaka, Mayumi

AU - Hirosawa, Ichiro

AU - Tanigaki, Katsumi

PY - 1996/8/1

Y1 - 1996/8/1

N2 - We have measured the low-energy inelastic neutron scattering spectra of superconducting Na2CsC60 in the temperature range 100-350 K. Well-defined librational peaks are observed at 2.7(1) meV; their position and width are temperature independent. They survive well above the order-disorder transition at 299 K. A quasielastic feature with a width 1.03(6) meV at an average scattering vector of 1.09 Å-1 is observed at 350 K, arising from diffusive motion of the C3-60 ions. Evidence is found for influence of the Na+ ions on the rotational motion of the C3-60 ions.

AB - We have measured the low-energy inelastic neutron scattering spectra of superconducting Na2CsC60 in the temperature range 100-350 K. Well-defined librational peaks are observed at 2.7(1) meV; their position and width are temperature independent. They survive well above the order-disorder transition at 299 K. A quasielastic feature with a width 1.03(6) meV at an average scattering vector of 1.09 Å-1 is observed at 350 K, arising from diffusive motion of the C3-60 ions. Evidence is found for influence of the Na+ ions on the rotational motion of the C3-60 ions.

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ER -

Molecular dynamics of C₆₀ in superconducting Na₂CsC₆₀

Abstract

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