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  Impact of structural complexity and disorder on lattice dynamics and thermal conductivity in the o-Al13Co4 phase

Lory, P.-F., Giordano, V. M., Gille, P., Euchner, H., Mihalkovič, M., Pellegrini, E., et al. (2020). Impact of structural complexity and disorder on lattice dynamics and thermal conductivity in the o-Al13Co4 phase. Physical Review B, 102(2): 024303, pp. 1-14. doi:10.1103/PhysRevB.102.024303.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-BDCC-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-BDD1-9
Genre: Journal Article

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 Creators:
Lory, P.-F.1, Author
Giordano, V. M.1, Author
Gille, P.1, Author
Euchner, H.1, Author
Mihalkovič, M.1, Author
Pellegrini, E.1, Author
Gonzalez, M.1, Author
Regnault, L.-P.1, Author
Bastie, P.1, Author
Schober, H.1, Author
Pailhes, S.1, Author
Johnson, M. R.1, Author
Grin, Yu.2, Author              
de Boissieu, M.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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 Abstract: Combining inelastic neutron and x-ray scattering with atomic scale simulation, we report on a comprehensive study of the lattice dynamics and its relationship with the low thermal conductivity of the o-Al13Co4 phase, a periodic approximant (about 100 atoms per cell) to a decagonal quasicrystal. The obtained experimental data, phonon lifetimes, and temperature-independent lattice thermal conductivity can only be fully described by molecular dynamics simulations, using oscillating pair potential, when the disorder of 12 Al sites is properly taken into account. Our results pave the way for a detailed understanding of materials where structural complexity and local disorder are at play.

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Language(s): eng - English
 Dates: 2020-07-072020-07-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 102 (2) Sequence Number: 024303 Start / End Page: 1 - 14 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008