Sound velocity and attenuation in single-crystal C60

X. D. Shi; A. R. Kortan; J. M. Williams; A. M. Kini; B. M. Savall; P. M. Chaikin

doi:10.1103/PhysRevLett.68.827

Sound velocity and attenuation in single-crystal C60

X. D. Shi, A. R. Kortan, J. M. Williams, A. M. Kini, B. M. Savall, P. M. Chaikin

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Abstract

We report the studies of the elasticity of O60 single crystals. For sublimed fcc crystals, Youngs modulus has an 8% jump at the first-order transition at 260 K. At 160 K there is a frequency-dependent elastic anomaly resulting from time dependent stress relaxation. Comparison with rotation rates seen in NMR suggests that the dynamics below 260 K is more complex than jumps between equivalent molecular configurations. Solvent grown monoclinic crystals have a second-order transition at 242 K, while the 160-K glass transition remains unchanged.

Original language	English (US)
Pages (from-to)	827-830
Number of pages	4
Journal	Physical Review Letters
Volume	68
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.68.827
State	Published - 1992

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.68.827

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title = "Sound velocity and attenuation in single-crystal C60",

abstract = "We report the studies of the elasticity of O60 single crystals. For sublimed fcc crystals, Youngs modulus has an 8% jump at the first-order transition at 260 K. At 160 K there is a frequency-dependent elastic anomaly resulting from time dependent stress relaxation. Comparison with rotation rates seen in NMR suggests that the dynamics below 260 K is more complex than jumps between equivalent molecular configurations. Solvent grown monoclinic crystals have a second-order transition at 242 K, while the 160-K glass transition remains unchanged.",

author = "Shi, {X. D.} and Kortan, {A. R.} and Williams, {J. M.} and Kini, {A. M.} and Savall, {B. M.} and Chaikin, {P. M.}",

year = "1992",

doi = "10.1103/PhysRevLett.68.827",

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AU - Shi, X. D.

AU - Kortan, A. R.

AU - Williams, J. M.

AU - Kini, A. M.

AU - Savall, B. M.

AU - Chaikin, P. M.

PY - 1992

Y1 - 1992

N2 - We report the studies of the elasticity of O60 single crystals. For sublimed fcc crystals, Youngs modulus has an 8% jump at the first-order transition at 260 K. At 160 K there is a frequency-dependent elastic anomaly resulting from time dependent stress relaxation. Comparison with rotation rates seen in NMR suggests that the dynamics below 260 K is more complex than jumps between equivalent molecular configurations. Solvent grown monoclinic crystals have a second-order transition at 242 K, while the 160-K glass transition remains unchanged.

AB - We report the studies of the elasticity of O60 single crystals. For sublimed fcc crystals, Youngs modulus has an 8% jump at the first-order transition at 260 K. At 160 K there is a frequency-dependent elastic anomaly resulting from time dependent stress relaxation. Comparison with rotation rates seen in NMR suggests that the dynamics below 260 K is more complex than jumps between equivalent molecular configurations. Solvent grown monoclinic crystals have a second-order transition at 242 K, while the 160-K glass transition remains unchanged.

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DO - 10.1103/PhysRevLett.68.827

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JO - Physical Review Letters

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IS - 6

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Sound velocity and attenuation in single-crystal C60

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