Thermal conductivity in self-assembled CoFe 2 O 4 /BiFeO 3 vertical nanocomposite films
Name
BCFOthermalconductivity.pdf
Description
Published version
Size
1.05 MB
Format
Adobe PDF
Checksum (MD5)
d5d6f1aadf162ff9d921e0e395ffbe6d
Author(s)
Zhang, Chen
Huberman, Samuel C
Ning, Shuai
Pelliciari, Jonathan
Duncan, Ryan A
Liao, Bolin
Ojha, Shuchi
Freeland, John W
Nelson, Keith A
Comin, Riccardo
Date Issued
2018
Journal
Applied Physics Letters
Publisher
AIP Publishing
Version
Final published version
Abstract
© 2018 Author(s). The thermal conductivity of self-assembled nanocomposite oxide films consisting of cobalt ferrite (CFO) spinel pillars grown within a single-crystal bismuth ferrite (BFO) perovskite matrix is described as a function of the volume fraction of the spinel. Single phase BFO and CFO had cross-plane thermal conductivities of 1.32 W m-1 K-1 and 3.94 W m-1 K-1, respectively, and the thermal conductivity of the nanocomposites increased with the CFO volume fraction within this range. A small increase (∼5%) in thermal conductivity for the pure CFO phase in the AC-demagnetized state was observed, suggesting possible magnon contributions. Steady state gray-medium based variance-reduced Monte Carlo simulations show consistent trends with experimental data on the dependence of thermal conductivity with the CFO volume fraction.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Chemistry
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1063/1.5049176
