Cited by 630Thermal properties of materialsThermoelastic and Magnetoelastic PhenomenaThermal Radiation and Cooling Technologies

Coherent Phonon Heat Conduction in Superlattices

Luckyanova, Maria N., Garg, Jivtesh, Esfarjani, Keivan, Jandl, Adam, Bulsara, Mayank T., Schmidt, Aaron J., Minnich, Austin J., Chen, Shuo +4 more·2012·Science

Abstract

Coherent Heat Flow: Typically, heat in solids is transported incoherently because phonons scatter at interfaces and defects. Luckyanova et al. (p. 936 ) grew super-lattice films made from one to nine repeats of layers of GaAs and AlAs, each 12-nm thick. Thermal conductivity through this sandwich structure increased linearly with the number of superlattice repeats, which is consistent with theoretical simulations of coherent heat transport.

Integrity signals

Registry

Crossref · 10.1126/science.1225549

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55 of 55 references verified0 citation errors · 0 not checkable

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  • Over the past two decades, TDTR has emerged and evolved as a reliable, powerful, and versatile technique to measure thermal properties of a wide range of bulk and thin film materials and their interfaces.

    “Over the past two decades, ultrafast laser-based time-domain thermoreflectance (TDTR) has emerged and evolved as a reliable, powerful, and versatile technique to measure the thermal properties of a wide range of bulk and thin film materials and their interfaces.”
  • The Kz of superlattices also depends on the total film thickness, indicating that a significant fraction of phonons can coherently transport across the interfaces and are only scattered by the film boundary.

    “However, the Kz of superlattices was also found to depend on the total film thickness, as shown in Figure 6(d), indicating that a significant fraction of phonons can coherently transport across the interfaces and are only scattered by the film boundary. 27, 137”
  • The thermal conductivity of superlattices and nanolaminates has been extensively characterized using TDTR over the last 15 years.

    “The thermal conductivity of superlattices and nanolaminates 27, 59, 78, 79, 123, 132-138 (see Figure 6(b) for an example) has been extensively characterized using TDTR over the last 15 years.”

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Authors
Luckyanova, M. N., Garg, J., Esfarjani, K., Jandl, A., Bulsara, M. T., Schmidt, A. J., Minnich, A. J., Chen, S., Dresselhaus, M. S., Ren, Z., Fitzgerald, E. A., & Chen, G.
Affiliations
  • Massachusetts Institute of Technology (US)
  • Boston University (US)
  • California Institute of Technology (US)
  • Boston College (US)
Corresponding author
  • Luckyanova, Maria N.
  • Garg, Jivtesh
  • Chen, Gang
Venue
Science
Published
2012-11-16
Volume
338
Issue
6109
Pages
936-939
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2036275833
Cited by
630
References
56
Citations by year
2026: 40 · 2025: 39 · 2024: 46 · 2023: 36 · 2022: 52 · 2021: 75 · 2020: 42 · 2019: 45 · 2018: 57 · 2017: 44 · 2016: 51 · 2015: 51 · 2014: 30 · 2013: 21 · 2012: 1
FWCI
15.16
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
U.S. Department of Energy (DESC0001299)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
  • Physical Sciences › Engineering › Mechanics of Materials › Thermoelastic and Magnetoelastic Phenomena
  • Physical Sciences › Engineering › Civil and Structural Engineering › Thermal Radiation and Cooling Technologies
Keywords
superlattices, thermal conductivity, phonon engineering, low-temperature thermal transport

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