On the existence of Einstein oscillators and thermal conductivity in bulk metallic glass

Zhenhua Zhou; Ctirad Uher; Donghua Xu; W. L. Johnson; W. Gannon; M. C. Aronson

doi:10.1063/1.2234281

On the existence of Einstein oscillators and thermal conductivity in bulk metallic glass

Zhenhua Zhou, Ctirad Uher, Donghua Xu, W. L. Johnson, W. Gannon, M. C. Aronson

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

48 Scopus citations

Abstract

Low-temperature specific heat and thermal conductivity of bulk metallic glasses are measured to identify the primary vibrational modes associated with their unique structures. An Einstein-type localized vibrational mode with an Einstein temperature of 112 K is found in bulk metallic glass Ni _59.5Nb _33.6Sn _6.9. This localized vibrational mode causes resonant scattering of phonons and results in the localization of phonons which leaves the phonon hopping conduction the limiting mechanism of thermal transport in bulk metallic glass Ni _59.5Nb _33.6Sn _6.9 at high temperature.

Original language	English
Article number	031924
Journal	Applied Physics Letters
Volume	89
Issue number	3
DOIs	https://doi.org/10.1063/1.2234281
State	Published - 2006

Bibliographical note

Funding Information:
The work of the two of the authors (W.G. and M.C.A.) is carried out under the auspices of the United States Department of Energy under Grant No. DE-FG02-94ER45526.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2234281

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title = "On the existence of Einstein oscillators and thermal conductivity in bulk metallic glass",

abstract = "Low-temperature specific heat and thermal conductivity of bulk metallic glasses are measured to identify the primary vibrational modes associated with their unique structures. An Einstein-type localized vibrational mode with an Einstein temperature of 112 K is found in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9. This localized vibrational mode causes resonant scattering of phonons and results in the localization of phonons which leaves the phonon hopping conduction the limiting mechanism of thermal transport in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9 at high temperature.",

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T1 - On the existence of Einstein oscillators and thermal conductivity in bulk metallic glass

AU - Zhou, Zhenhua

AU - Uher, Ctirad

AU - Xu, Donghua

AU - Johnson, W. L.

AU - Gannon, W.

AU - Aronson, M. C.

N1 - Funding Information: The work of the two of the authors (W.G. and M.C.A.) is carried out under the auspices of the United States Department of Energy under Grant No. DE-FG02-94ER45526.

PY - 2006

Y1 - 2006

N2 - Low-temperature specific heat and thermal conductivity of bulk metallic glasses are measured to identify the primary vibrational modes associated with their unique structures. An Einstein-type localized vibrational mode with an Einstein temperature of 112 K is found in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9. This localized vibrational mode causes resonant scattering of phonons and results in the localization of phonons which leaves the phonon hopping conduction the limiting mechanism of thermal transport in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9 at high temperature.

AB - Low-temperature specific heat and thermal conductivity of bulk metallic glasses are measured to identify the primary vibrational modes associated with their unique structures. An Einstein-type localized vibrational mode with an Einstein temperature of 112 K is found in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9. This localized vibrational mode causes resonant scattering of phonons and results in the localization of phonons which leaves the phonon hopping conduction the limiting mechanism of thermal transport in bulk metallic glass Ni 59.5Nb 33.6Sn 6.9 at high temperature.

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DO - 10.1063/1.2234281

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JF - Applied Physics Letters

IS - 3

M1 - 031924

ER -

On the existence of Einstein oscillators and thermal conductivity in bulk metallic glass

Abstract

Bibliographical note

ASJC Scopus subject areas

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