Cited by 262Thermal properties of materials2D Materials and ApplicationsThermography and Photoacoustic Techniques

Measurement of the anisotropic thermal conductivity of molybdenum disulfide by the time-resolved magneto-optic Kerr effect

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Liu, Jun, Choi, Gyung-Min, Cahill, David G.·2014·Journal of Applied Physics

Abstract

We use pump-probe metrology based on the magneto-optic Kerr effect to measure the anisotropic thermal conductivity of (001)-oriented MoS2 crystals. A ≈20 nm thick CoPt multilayer with perpendicular magnetization serves as the heater and thermometer in the experiment. The low thermal conductivity and small thickness of the CoPt transducer improve the sensitivity of the measurement to lateral heat flow in the MoS2 crystal. The thermal conductivity of MoS2 is highly anisotropic with basal-plane thermal conductivity varying between 85–110 W m-1 K-1 as a function of laser spot size. The basal-plane thermal conductivity is a factor of ≈50 larger than the c-axis thermal conductivity, 2.0±0.3 W m-1 K-1.

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Authors
Liu, J., Choi, G.-M., & Cahill, D. G.
Affiliations
  • University of Illinois Department of Materials Science and Engineering and Materials Research Laboratory, , Urbana, Illinois 61801, USA
  • University of Illinois Urbana-Champaign (US)
Venue
Journal of Applied Physics
Published
2014-12-19
Volume
116
Issue
23
ISSN
  • 0021-8979 (ISSN-L)
  • 1089-7550
OpenAlex
W1986934748
Cited by
262
References
34
Citations by year
2026: 16 · 2025: 20 · 2024: 11 · 2023: 20 · 2022: 20 · 2021: 18 · 2020: 29 · 2019: 37 · 2018: 24 · 2017: 39 · 2016: 22 · 2015: 6
FWCI
10.14
Type
journal article
Language
en
Open access
Locations
Journal of Applied Physics (publishedVersion)
Funders
Air Force Office of Scientific Research (AF FA9550-12-1-0073)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
  • Physical Sciences › Engineering › Mechanics of Materials › Thermography and Photoacoustic Techniques
Keywords
MoS2, anisotropic thermal conductivity, magneto-optical Kerr effect, pump-probe measurement, perpendicular magnetization, lateral heat flow, two-dimensional materials

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