Journal
JOURNAL OF APPLIED PHYSICS
Volume 92, Issue 9, Pages 4994-4998Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1506194
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A differential 3omega technique is employed to determine the thermal conductivity of the AlAs0.07Sb0.93 ternary alloy, the Al0.9Ga0.1As0.07Sb0.93 quaternary alloy, and an (AlAs)(1)/(AlSb)(11) digital-alloy superlattice. Between 80 and 300 K, the thermal conductivities for all three samples are relatively insensitive to temperature. The thermal conductivity of the (AlAs)(1)/(AlSb)(11) superlattice is smaller than that of the AlAs0.07Sb0.93 ternary alloy, but much larger than the predictions of a model for phonon transport across the superlattice interfaces. (C) 2002 American Institute of Physics.
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