Microwave measurements on the heavy fermion superconductors UPt3 and UBe13

S. W. Lin; C. T. Lin; D. Wu; Bimal K. Sarma; G. R. Stewar; John B Ketterson

doi:10.1007/BF00753365

Microwave measurements on the heavy fermion superconductors UPt₃ and UBe₁₃

S. W. Lin^*, C. T. Lin, D. Wu, Bimal K. Sarma, G. R. Stewar, John B Ketterson

^*Corresponding author for this work

Physics and Astronomy

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

1 Scopus citations

Abstract

The complex microwave impedance at ∼11.5 GHz was measured in the superconducting state of two well characterized heavy fermion single crystals, UPt₃ and UBe₁₃. This microwave photon energy is about 30% and 20% of the zero-temperature energy gap, respectively, and is higher than previous measurements. The results for UBe₁₃ seem to be well described by the Mattis-Bardeen theory in the dirty-limit for a conventional superconductor. However, the behavior in UPt₃ deviates from this conventional theory even when paramagnetic impurity scattering effects are taken into account.

Original language	English (US)
Pages (from-to)	629-634
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	101
Issue number	3-4
DOIs	https://doi.org/10.1007/BF00753365
State	Published - Nov 1 1995

Keywords

74.20.Fg.
74.25.Nf
74.70.Tx

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

Access to Document

10.1007/BF00753365

Cite this

@article{80a789904c5a4dc2884e0e4f1bb5b702,

title = "Microwave measurements on the heavy fermion superconductors UPt3 and UBe13",

abstract = "The complex microwave impedance at ∼11.5 GHz was measured in the superconducting state of two well characterized heavy fermion single crystals, UPt3 and UBe13. This microwave photon energy is about 30% and 20% of the zero-temperature energy gap, respectively, and is higher than previous measurements. The results for UBe13 seem to be well described by the Mattis-Bardeen theory in the dirty-limit for a conventional superconductor. However, the behavior in UPt3 deviates from this conventional theory even when paramagnetic impurity scattering effects are taken into account.",

keywords = "74.20.Fg., 74.25.Nf, 74.70.Tx",

author = "Lin, {S. W.} and Lin, {C. T.} and D. Wu and Sarma, {Bimal K.} and Stewar, {G. R.} and Ketterson, {John B}",

year = "1995",

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AU - Lin, S. W.

AU - Lin, C. T.

AU - Wu, D.

AU - Sarma, Bimal K.

AU - Stewar, G. R.

AU - Ketterson, John B

PY - 1995/11/1

Y1 - 1995/11/1

N2 - The complex microwave impedance at ∼11.5 GHz was measured in the superconducting state of two well characterized heavy fermion single crystals, UPt3 and UBe13. This microwave photon energy is about 30% and 20% of the zero-temperature energy gap, respectively, and is higher than previous measurements. The results for UBe13 seem to be well described by the Mattis-Bardeen theory in the dirty-limit for a conventional superconductor. However, the behavior in UPt3 deviates from this conventional theory even when paramagnetic impurity scattering effects are taken into account.

AB - The complex microwave impedance at ∼11.5 GHz was measured in the superconducting state of two well characterized heavy fermion single crystals, UPt3 and UBe13. This microwave photon energy is about 30% and 20% of the zero-temperature energy gap, respectively, and is higher than previous measurements. The results for UBe13 seem to be well described by the Mattis-Bardeen theory in the dirty-limit for a conventional superconductor. However, the behavior in UPt3 deviates from this conventional theory even when paramagnetic impurity scattering effects are taken into account.

KW - 74.20.Fg.

KW - 74.25.Nf

KW - 74.70.Tx

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