skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Lattice dynamics in Sn nanoislands and cluster-assembled films

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division
OSTI Identifier:
1377394
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B; Journal Volume: 95; Journal Issue: 15
Country of Publication:
United States
Language:
English
Subject:
Lattice dynamics

Citation Formats

Houben, Kelly, Couet, Sebastien, Trekels, Maarten, Menéndez, Enric, Peissker, Tobias, Seo, Jin Won, Hu, Michael Y., Zhao, Jiyong Y., Alp, Esen E., Roelants, Sam, Partoens, Bart, Milošević, Milorad V., Peeters, François M., Bessas, Dimitrios, Brown, Simon A., Vantomme, André, Temst, Kristiaan, and Van Bael, Margriet J.. Lattice dynamics in Sn nanoislands and cluster-assembled films. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.155413.
Houben, Kelly, Couet, Sebastien, Trekels, Maarten, Menéndez, Enric, Peissker, Tobias, Seo, Jin Won, Hu, Michael Y., Zhao, Jiyong Y., Alp, Esen E., Roelants, Sam, Partoens, Bart, Milošević, Milorad V., Peeters, François M., Bessas, Dimitrios, Brown, Simon A., Vantomme, André, Temst, Kristiaan, & Van Bael, Margriet J.. Lattice dynamics in Sn nanoislands and cluster-assembled films. United States. doi:10.1103/PhysRevB.95.155413.
Houben, Kelly, Couet, Sebastien, Trekels, Maarten, Menéndez, Enric, Peissker, Tobias, Seo, Jin Won, Hu, Michael Y., Zhao, Jiyong Y., Alp, Esen E., Roelants, Sam, Partoens, Bart, Milošević, Milorad V., Peeters, François M., Bessas, Dimitrios, Brown, Simon A., Vantomme, André, Temst, Kristiaan, and Van Bael, Margriet J.. Sat . "Lattice dynamics in Sn nanoislands and cluster-assembled films". United States. doi:10.1103/PhysRevB.95.155413.
@article{osti_1377394,
title = {Lattice dynamics in Sn nanoislands and cluster-assembled films},
author = {Houben, Kelly and Couet, Sebastien and Trekels, Maarten and Menéndez, Enric and Peissker, Tobias and Seo, Jin Won and Hu, Michael Y. and Zhao, Jiyong Y. and Alp, Esen E. and Roelants, Sam and Partoens, Bart and Milošević, Milorad V. and Peeters, François M. and Bessas, Dimitrios and Brown, Simon A. and Vantomme, André and Temst, Kristiaan and Van Bael, Margriet J.},
abstractNote = {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.},
doi = {10.1103/PhysRevB.95.155413},
journal = {Physical Review B},
number = 15,
volume = 95,
place = {United States},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}