ACOUSTIC MATCHING OF SUPERCONDUCTING FILMS TO SUBSTRATES

被引:193
作者
KAPLAN, SB
机构
[1] Electromagnetic Technology Division, National Bureau of Standards, Boulder, Colorado
关键词
D O I
10.1007/BF00119193
中图分类号
O59 [应用物理学];
学科分类号
摘要
Acoustic mismatch theory is used to estimate phonon transmission coefficients for various superconductor/substrate interfaces. It is shown that the conventionally employed substrates offer the largest acoustic mismatch to many of the commonly studied superconductors, thereby leading to unnecessarily large phonon-trapping and other nonequilibrium effects. Most available experimental results are shown to be in reasonable agreement with the theoretical estimates. © 1979 Plenum Publishing Corporation.
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页码:343 / 365
页数:23
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