Thermal conductivity of Bi/Sb superlattice

D. W. Song; G. Chen; S. Cho; Y. Kim; J. B. Ketterson

Thermal conductivity of Bi/Sb superlattice

D. W. Song^*, G. Chen, S. Cho, Y. Kim, J. B. Ketterson

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

Abstract

The temperature-dependent cross-plane thermal conductivity of a 1-μm thick 50Å Bi / 50Å Sb superlattice on a (111) CdTe substrate was measured, using a differential 3-ω method. This method uses the temperature difference between the superlattice sample and a reference sample to calculate its cross-plane thermal conductivity. However, the substrate thermal conductivity is comparable to or smaller than the superlattice thermal conductivity near room temperature. This results in a very small or negative temperature difference, making the existing data reduction method inapplicable. Based on an improved model, the temperature-dependent thermal conductivity of the Bi/Sb superlattice is obtained and is about half of the literature value of Bi_0.5Sb_0.5 bulk alloy.

Original language	English (US)
Pages (from-to)	Z911-Z915
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	4
State	Published - 2001
Event	IEEE International Symposium on Circuits and Systems (ISCAS 2001) - Sydney, NSW, Australia Duration: May 6 2001 → May 9 2001

ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

@article{e62e2329c7cb4f6f9667a8a9988409fd,

title = "Thermal conductivity of Bi/Sb superlattice",

abstract = "The temperature-dependent cross-plane thermal conductivity of a 1-μm thick 50{\AA} Bi / 50{\AA} Sb superlattice on a (111) CdTe substrate was measured, using a differential 3-ω method. This method uses the temperature difference between the superlattice sample and a reference sample to calculate its cross-plane thermal conductivity. However, the substrate thermal conductivity is comparable to or smaller than the superlattice thermal conductivity near room temperature. This results in a very small or negative temperature difference, making the existing data reduction method inapplicable. Based on an improved model, the temperature-dependent thermal conductivity of the Bi/Sb superlattice is obtained and is about half of the literature value of Bi0.5Sb0.5 bulk alloy.",

author = "Song, {D. W.} and G. Chen and S. Cho and Y. Kim and Ketterson, {J. B.}",

year = "2001",

language = "English (US)",

volume = "4",

pages = "Z911--Z915",

journal = "Proceedings - IEEE International Symposium on Circuits and Systems",

issn = "0271-4310",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "IEEE International Symposium on Circuits and Systems (ISCAS 2001) ; Conference date: 06-05-2001 Through 09-05-2001",

}

TY - JOUR

T1 - Thermal conductivity of Bi/Sb superlattice

AU - Song, D. W.

AU - Chen, G.

AU - Cho, S.

AU - Kim, Y.

AU - Ketterson, J. B.

PY - 2001

Y1 - 2001

N2 - The temperature-dependent cross-plane thermal conductivity of a 1-μm thick 50Å Bi / 50Å Sb superlattice on a (111) CdTe substrate was measured, using a differential 3-ω method. This method uses the temperature difference between the superlattice sample and a reference sample to calculate its cross-plane thermal conductivity. However, the substrate thermal conductivity is comparable to or smaller than the superlattice thermal conductivity near room temperature. This results in a very small or negative temperature difference, making the existing data reduction method inapplicable. Based on an improved model, the temperature-dependent thermal conductivity of the Bi/Sb superlattice is obtained and is about half of the literature value of Bi0.5Sb0.5 bulk alloy.

AB - The temperature-dependent cross-plane thermal conductivity of a 1-μm thick 50Å Bi / 50Å Sb superlattice on a (111) CdTe substrate was measured, using a differential 3-ω method. This method uses the temperature difference between the superlattice sample and a reference sample to calculate its cross-plane thermal conductivity. However, the substrate thermal conductivity is comparable to or smaller than the superlattice thermal conductivity near room temperature. This results in a very small or negative temperature difference, making the existing data reduction method inapplicable. Based on an improved model, the temperature-dependent thermal conductivity of the Bi/Sb superlattice is obtained and is about half of the literature value of Bi0.5Sb0.5 bulk alloy.

UR - http://www.scopus.com/inward/record.url?scp=0034999092&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034999092&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0034999092

SN - 0271-4310

VL - 4

SP - Z911-Z915

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

T2 - IEEE International Symposium on Circuits and Systems (ISCAS 2001)

Y2 - 6 May 2001 through 9 May 2001

ER -

Thermal conductivity of Bi/Sb superlattice

Abstract

ASJC Scopus subject areas

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