Theodorian Borca-Tasciuc
Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Mechanical and Aerospace Engineering Department University of California at Los Angeles, Los Angeles, CA 90095-1597
D. Achimov
Mechanical and Aerospace Engineering Department
University of California at Los Angeles, Los Angeles, CA 90095-1597
W.L. Liu
Mechanical and Aerospace Engineering Department
University of California at Los Angeles, Los Angeles, CA 90095-1597
Gang Chen
Mechanical and Aerospace Engineering Department
University of California, Los Angeles, CA 90095-1597
H.-W. Ren
ECE Department and SVEC, University of Houston, TX 77478
C.-H. Lin
ECE Department and SVEC, University of Houston, TX 77478
S. S. Pei
ECE Department and SVEC, University of Houston, TX 77478
In this work, we present experimental studies on the cross-plane thermal conductivity of InAs/AlSb superlattices. The thermal conductivities of MBE grown InAs/AlSb superlattices are measured using the 3ω method from 80-300 K. The influence of the growth temperature and post annealing is investigated. Significant reductions in thermal conductivity are observed in these superlattices compared to the predictions of the Fourier heat conduction theory based on the bulk material properties. These results suggest that the interface conditions strongly influence the thermal conductivity.