Publication: Ultrasonic attenuation coefficient for superconductors containing local spin fluctuations
1
Issued Date
1985-07-01
Resource Type
ISSN
15737357
00222291
00222291
Other identifier(s)
2-s2.0-0022094205
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Low Temperature Physics. Vol.60, No.1-2 (1985), 9-18
Suggested Citation
I. M. Tang Ultrasonic attenuation coefficient for superconductors containing local spin fluctuations. Journal of Low Temperature Physics. Vol.60, No.1-2 (1985), 9-18. doi:10.1007/BF00681649 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/30909
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Title
Ultrasonic attenuation coefficient for superconductors containing local spin fluctuations
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Abstract
The attenuation coefficients are obtained for longitudinal waves in the limit ql≫1 for superconductors containing nonmagnetic Anderson impurities that give rise to local spin fluctuations (LSF). The multiplicative renormalization approach is used to treat the Coulomb repulsion between pairs of d electrons of opposite spins localized on an impurity site. Several thermodynamic properties of the LSF superconductors are obtained. The attenuation coefficient close to T cis obtained by renormalizing the propagator lines and vertices appearing in the leading diagrams in the expansion of the density-density correlation function. Comparison is made with the attenuation coefficient for a superconductor having nonmagnetic localized states formed about the transition metal impurities. © 1985 Plenum Publishing Corporation.