The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Theoretical phonon thermal conductivity of Si/Ge superlattice nanowires
Abstract
An incoherent particle model has been developed to calculate the phonon thermal conductivity of superlattice nanowires. This is an extension of the photon net-radiation method and Schuster–Schwarzschild approximation to dispersive acoustic phonons in a gray medium. By comparing the roughness and geometric variations of typical nanowires to the characteristic phonon wavelength (∼1 nm at 300 K), diffuse scattering and incoherent three-dimensional dispersion are justified. An isotropic sine-type (Born–von Karman) dispersion is used, which requires only the sound velocity, atomic number density, and bulk conductivity to fully describe a material. A simple picture is also given in terms of Matthiessen’s rule and three effective mean free paths. Agreement with available experimental data is poor at the smallest diameters, but good above 30 nm diameter. Compared to a conventional superlattice, calculations show that the additional sidewall scattering in a superlattice nanowire can reduce the thermal conductivity by a factor of 2 or more.
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Citations
Cites
Growth of nanowire superlattice structures for nanoscale photonics and electronics
Gudiksen, M. S., Lauhon, L. J., Wang, J., Smith, D. C., & Lieber, C. M. (2002) · Nature · doi:10.1038/415617a · Cited by 2,709
Thermal Conductivity of Silicon and Germanium from 3°K to the Melting Point
Glassbrenner, C. J., & Slack, G. A. (1964) · Physical Review · doi:10.1103/physrev.134.a1058 · Cited by 1,652
Kapitza conductance and heat flow between solids at temperatures from 50 to 300 K
Stoner, R. J., & Maris, H. J. (1993) · Physical Review B · doi:10.1103/physrevb.48.16373 · Cited by 646
Cited by
Phonon-engineered extreme thermal conductivity materials
Qian, X., Zhou, J., & Chen, G. (2021) · Nature Materials · doi:10.1038/s41563-021-00918-3 · Cited by 837
Self-citationWang, Z., Alaniz, J. E., Jang, W., Garay, J. E., & Dames, C. (2011) · Nano Letters · doi:10.1021/nl1045395 · Cited by 462
Self-citationThermal contact resistance between graphene and silicon dioxide
Chen, Z., Jang, W., Bao, W., Lau, C. N., & Dames, C. (2009) · Applied Physics Letters · doi:10.1063/1.3245315 · Cited by 349
Self-citationJeng, M.-S., Yang, R., Song, D., & Chen, G. (2008) · Journal of Heat Transfer · doi:10.1115/1.2818765 · Cited by 305
Self-citationNon-Fourier phonon heat conduction at the microscale and nanoscale
Chen, G. (2021) · Nature Reviews Physics · doi:10.1038/s42254-021-00334-1 · Cited by 305
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Metadata
- Authors
- Dames, C., & Chen, G.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 2004-01-15
- Volume
- 95
- Issue
- 2
- Pages
- 682-693
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2048848289
- Cited by
- 401
- References
- 3
- FWCI
- 5.93
- Type
- journal article
- Language
- en
- Open access
- closed
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