Lattice dynamics in Sn nanoislands and cluster-assembled films

Kelly Houben; Sebastien Couet; Maarten Trekels; Enric Menéndez; Tobias Peissker; Jin Won Seo; Michael Y. Hu; Jiyong Y. Zhao; Esen E. Alp; Sam Roelants; Bart Partoens; Milorad V. Milošević; François M. Peeters; Dimitrios Bessas; Simon A. Brown; André Vantomme; Kristiaan Temst; Margriet J. Van Bael

doi:10.1103/PhysRevB.95.155413

Lattice dynamics in Sn nanoislands and cluster-assembled films

Kelly Houben, Sebastien Couet, Maarten Trekels, Enric Menéndez, Tobias Peissker, Jin Won Seo, Michael Y. Hu, Jiyong Y. Zhao, Esen E. Alp, Sam Roelants, Bart Partoens, Milorad V. Milošević, François M. Peeters, Dimitrios Bessas, Simon A. Brown, André Vantomme, Kristiaan Temst, Margriet J. Van Bael

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

6 Citations (Scopus)

Abstract

© 2017 American Physical Society. To unravel the effects of phonon confinement, the influence of size and morphology on the atomic vibrations is investigated in Sn nanoislands and cluster-assembled films. Nuclear resonant inelastic x-ray scattering is used to probe the phonon densities of states of the Sn nanostructures which show significant broadening of the features compared to bulk phonon behavior. Supported by ab initio calculations, the broadening is attributed to phonon scattering and can be described within the damped harmonic oscillator model. Contrary to the expectations based on previous research, the appearance of high-energy modes above the cutoff energy is not observed. From the thermodynamic properties extracted from the phonon densities of states, it was found that grain boundary Sn atoms are bound by weaker forces than bulk Sn atoms.

Original language	English
Article number	155413
Journal	Physical Review B
Volume	95
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.95.155413
Publication status	Published - 10 Apr 2017

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Houben, K., Couet, S., Trekels, M., Menéndez, E., Peissker, T., Seo, J. W., Hu, M. Y., Zhao, J. Y., Alp, E. E., Roelants, S., Partoens, B., Milošević, M. V., Peeters, F. M., Bessas, D., Brown, S. A., Vantomme, A., Temst, K., & Van Bael, M. J. (2017). Lattice dynamics in Sn nanoislands and cluster-assembled films. Physical Review B, 95(15), Article 155413. https://doi.org/10.1103/PhysRevB.95.155413

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title = "Lattice dynamics in Sn nanoislands and cluster-assembled films",

abstract = "{\textcopyright} 2017 American Physical Society. To unravel the effects of phonon confinement, the influence of size and morphology on the atomic vibrations is investigated in Sn nanoislands and cluster-assembled films. Nuclear resonant inelastic x-ray scattering is used to probe the phonon densities of states of the Sn nanostructures which show significant broadening of the features compared to bulk phonon behavior. Supported by ab initio calculations, the broadening is attributed to phonon scattering and can be described within the damped harmonic oscillator model. Contrary to the expectations based on previous research, the appearance of high-energy modes above the cutoff energy is not observed. From the thermodynamic properties extracted from the phonon densities of states, it was found that grain boundary Sn atoms are bound by weaker forces than bulk Sn atoms.",

author = "Kelly Houben and Sebastien Couet and Maarten Trekels and Enric Men{\'e}ndez and Tobias Peissker and Seo, {Jin Won} and Hu, {Michael Y.} and Zhao, {Jiyong Y.} and Alp, {Esen E.} and Sam Roelants and Bart Partoens and Milo{\v s}evi{\'c}, {Milorad V.} and Peeters, {Fran{\c c}ois M.} and Dimitrios Bessas and Brown, {Simon A.} and Andr{\'e} Vantomme and Kristiaan Temst and {Van Bael}, {Margriet J.}",

year = "2017",

month = apr,

day = "10",

doi = "10.1103/PhysRevB.95.155413",

language = "English",

volume = "95",

number = "15",

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TY - JOUR

T1 - Lattice dynamics in Sn nanoislands and cluster-assembled films

AU - Houben, Kelly

AU - Couet, Sebastien

AU - Trekels, Maarten

AU - Menéndez, Enric

AU - Peissker, Tobias

AU - Seo, Jin Won

AU - Hu, Michael Y.

AU - Zhao, Jiyong Y.

AU - Alp, Esen E.

AU - Roelants, Sam

AU - Partoens, Bart

AU - Milošević, Milorad V.

AU - Peeters, François M.

AU - Bessas, Dimitrios

AU - Brown, Simon A.

AU - Vantomme, André

AU - Temst, Kristiaan

AU - Van Bael, Margriet J.

PY - 2017/4/10

Y1 - 2017/4/10

N2 - © 2017 American Physical Society. To unravel the effects of phonon confinement, the influence of size and morphology on the atomic vibrations is investigated in Sn nanoislands and cluster-assembled films. Nuclear resonant inelastic x-ray scattering is used to probe the phonon densities of states of the Sn nanostructures which show significant broadening of the features compared to bulk phonon behavior. Supported by ab initio calculations, the broadening is attributed to phonon scattering and can be described within the damped harmonic oscillator model. Contrary to the expectations based on previous research, the appearance of high-energy modes above the cutoff energy is not observed. From the thermodynamic properties extracted from the phonon densities of states, it was found that grain boundary Sn atoms are bound by weaker forces than bulk Sn atoms.

AB - © 2017 American Physical Society. To unravel the effects of phonon confinement, the influence of size and morphology on the atomic vibrations is investigated in Sn nanoislands and cluster-assembled films. Nuclear resonant inelastic x-ray scattering is used to probe the phonon densities of states of the Sn nanostructures which show significant broadening of the features compared to bulk phonon behavior. Supported by ab initio calculations, the broadening is attributed to phonon scattering and can be described within the damped harmonic oscillator model. Contrary to the expectations based on previous research, the appearance of high-energy modes above the cutoff energy is not observed. From the thermodynamic properties extracted from the phonon densities of states, it was found that grain boundary Sn atoms are bound by weaker forces than bulk Sn atoms.

U2 - 10.1103/PhysRevB.95.155413

DO - 10.1103/PhysRevB.95.155413

M3 - Article

SN - 2469-9950

VL - 95

JO - Physical Review B

JF - Physical Review B

IS - 15

M1 - 155413

ER -

Lattice dynamics in Sn nanoislands and cluster-assembled films

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