Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Description of supercell. In this figure Ncell = 6. Blue atoms at the upper and lower boundaries are held fixed.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Illustration of wavepacket width for kx = 0.250 (1/σ). Wider wavepackets better approximate phonons of single wavenumber.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Dispersion relations of four different atomistic waveguide leads simulated: (a) 2 cells wide, (b) 4 cells wide, (c) 6 cells wide, and (d) 8 cells wide. Only the highlighted branches (SH1-heavy solid line, SH2-heavy dashed line) are investigated in this study.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Transmission dependence on wave packet width for 2 cell waveguide. Upper set of data points correspond to SH1 at kx = 0.159 (1/σ). Lower set of data points correspond to SH1 at kx = 0.111 (1/σ). Marker shapes correspond to different domain sizes: triangles (Lwaveguide = 259.2 σ), crosses (Lwaveguide = 518.4 σ), circles (Lwaveguide = 2073.8 σ), squares (Lwaveguide = 2592.2 σ).

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: T-stub-waveguide geometry

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Molecular dynamics computational geometry

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: SH1 transmission dependence on wave packet width for 6 cell waveguide. Results are shown across a range of wavenumber and compared with the continuum result obtained from technique presented in Sec. 2.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Snap-shots of z-displacement field for different values of wavenumber for incident SH1 mode. Extrema in transmission correspond to formation of standing waves in T-stub region.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Transmission of SH1 mode for different sized waveguide leads. For all cases, hII* = 2.0 and d* = 1.0. Agreement with continuum is best for the thicker waveguide leads (6 cell and 8 cell) and at lower frequencies.

Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides J. Heat Transfer. 2013;135(9):091101-091101-9. doi:10.1115/1.4024355 Figure Legend: Transmission of SH2 mode for different sized waveguide leads