Electromagnetic generation of transverse acoustic waves in the gigahertz range using indium films

Y. Goldstein; A. Zemel

doi:10.1103/PhysRevLett.28.147

Electromagnetic generation of transverse acoustic waves in the gigahertz range using indium films

Y. Goldstein^*, A. Zemel

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Transverse acoustic waves were generated electromagnetically at 9 GHz using In films with a conversion efficiency α of 5 × 10-5. A good agreement is found between theory and experiment and we obtain the value of 620 for the superconducting penetration depth λ at 0.4Tc and 5×1010 Ω-1 cm-2 for the ratio of the conductivity to the mean free path for In. From the temperature dependence of α below the superconducting transition temperature it is concluded that pair scattering at the surface does not conserve momentum.

Original language	English
Pages (from-to)	147-150
Number of pages	4
Journal	Physical Review Letters
Volume	28
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.28.147
State	Published - 1972

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10.1103/PhysRevLett.28.147

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abstract = "Transverse acoustic waves were generated electromagnetically at 9 GHz using In films with a conversion efficiency α of 5 × 10-5. A good agreement is found between theory and experiment and we obtain the value of 620 for the superconducting penetration depth λ at 0.4Tc and 5×1010 Ω-1 cm-2 for the ratio of the conductivity to the mean free path for In. From the temperature dependence of α below the superconducting transition temperature it is concluded that pair scattering at the surface does not conserve momentum.",

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Electromagnetic generation of transverse acoustic waves in the gigahertz range using indium films

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