DOI: 10.1063/1.1465106. Phonon wave-packet dynamics at semiconductor interfaces by molecular-dynamics simulation

Phonon wave-packet dynamics at semiconductor interfaces by molecular-dynamics simulation

10.1063/1.1465106

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We directly observe phonon wave packets of well-defined frequency and polarization scattering at a coherent semiconductor interface using molecular-dynamics simulations. We find that in the low-frequency limit the transmission coefficients of both longitudinal and transverse acoustic phonons agree well with those predicted by the continuum-level based acoustic mismatch model. However, the transmission coefficients rapidly decrease close to the cutoff frequency, a result that can be understood within a simple one-dimensional discrete atomic-chain model. We also find that the transmission coefficient for transverse acoustic phonons depends strongly on the relative orientation of the polarization and the Si–Si bonds in the diamond lattice structure.

Bibliography

Schelling, P. K., Phillpot, S. R., & Keblinski, P. (2002). Phonon wave-packet dynamics at semiconductor interfaces by molecular-dynamics simulation. Applied Physics Letters, 80(14), 2484â2486.

Authors 3

P. K. Schelling (first)
S. R. Phillpot (additional)
P. Keblinski (additional)

References 12 Referenced 293

10.1063/1.98526 / Appl. Phys. Lett. (1987)
10.1063/1.114919 / Appl. Phys. Lett. (1995)
10.1063/1.118755 / Appl. Phys. Lett. (1997)
{'key': '2024020322032679300_r4'}
10.1038/35098012 / Nature (London) (2001)
10.1103/PhysRevB.57.14958 / Phys. Rev. B (1998)
{'key': '2024020322032679300_r7'}
10.1103/PhysRevB.31.5262 / Phys. Rev. B (1985)
10.1103/PhysRevB.35.9120 / Phys. Rev. B (1987)
10.1103/PhysRevB.40.3685 / Phys. Rev. B (1989)
10.1103/PhysRevB.56.10754 / Phys. Rev. B (1997)
10.1103/RevModPhys.61.605 / Rev. Mod. Phys. (1989)

Dates

Type	When
Created	23 years ago (July 26, 2002, 10:18 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 5:03 p.m.)
Indexed	1 day, 23 hours ago (Aug. 23, 2025, 9:51 p.m.)
Issued	23 years, 4 months ago (April 8, 2002)
Published	23 years, 4 months ago (April 8, 2002)
Published Print	23 years, 4 months ago (April 8, 2002)

Funders 0

None

BibTeX

@article{Schelling_2002, title={Phonon wave-packet dynamics at semiconductor interfaces by molecular-dynamics simulation}, volume={80}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1465106}, DOI={10.1063/1.1465106}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Schelling, P. K. and Phillpot, S. R. and Keblinski, P.}, year={2002}, month=apr, pages={2484–2486} }

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