TY - JOUR
T1 - Two-level tunnelling model description of thermal conductivity for CuχSn1-χ metallic glasses at low temperature
AU - Bhuiyan, G. M.
AU - Shahjahan, Md
AU - Ali, Issam
AU - Rahman, S. M.Mujibur
N1 - Funding Information:
We are extremely grateful to Professor N. H. March for reading this manuscript and for his valuable comments. We are thankful to Dr. R. Schmidt for providing experimental data. Thanks also go to Dr. C. Lauinger for giving references for some other experimental data. One of us (GMB) thanks the Alexander von Humboldt Foundation for hospitality and financial support during his stay in Germany. He would also like to thank Sultan Qaboos University for hospitality where the work was completed.
PY - 2003/4/30
Y1 - 2003/4/30
N2 - The two level tunnelling model is applied to analyze recent experimental data on low temperature thermal conductivity of CuχSn1-χ metallic glasses. An extra scattering mechanism due to Rayleigh is introduced to describe three characteristic regions of conductivity. Model parameters are determined using least-squares fitting procedure. Results derived from the parameters allow one to predict several interesting low temperature properties of metallic glasses in particular the characteristic plateau of conductivity. Theoretical results are also compared and contrasted with those of other metallic and non-metallic systems, and both common and uncommon features that exist between them are discussed.
AB - The two level tunnelling model is applied to analyze recent experimental data on low temperature thermal conductivity of CuχSn1-χ metallic glasses. An extra scattering mechanism due to Rayleigh is introduced to describe three characteristic regions of conductivity. Model parameters are determined using least-squares fitting procedure. Results derived from the parameters allow one to predict several interesting low temperature properties of metallic glasses in particular the characteristic plateau of conductivity. Theoretical results are also compared and contrasted with those of other metallic and non-metallic systems, and both common and uncommon features that exist between them are discussed.
KW - Low temperature
KW - Metallic glasses
KW - Plateau of conductivity
KW - Thermal conductivity
KW - Two level tunnelling model
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U2 - 10.1142/S0217979203018247
DO - 10.1142/S0217979203018247
M3 - Review article
AN - SCOPUS:0037561532
SN - 0217-9792
VL - 17
SP - 2259
EP - 2271
JO - International Journal of Modern Physics B
JF - International Journal of Modern Physics B
IS - 11
ER -