Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C

K. Takaki, A. Koizumi, T. Hanaguri, Minoru Nohara, H. Takagi, K. Kitazawa, Y. Kato, Y. Tsuchiya, H. Kitano, A. Maeda

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The microwave complex surface impedance Zs of Y(Ni1-xPtx)2B2C was measured at 0.5 K under magnetic fields H up to 7 T. In nominally pure YNi2B2C, which is a strongly anisotropic s-wave superconductor, the flux flow resistivity ρf calculated from Zs was twice as large as that expected from the conventional normal-state vortex core model. In Pt-doped samples where the gap anisotropy is smeared out, the enhancement of ρf is reduced and ρf approaches the conventional behavior. These results indicate that the energy dissipation in the vortex core is strongly affected by the anisotropy of the superconducting gap.

Original languageEnglish
Article number184511
Pages (from-to)1845111-1845115
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number18
Publication statusPublished - Nov 1 2002
Externally publishedYes

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Vortex flow
Anisotropy
vortices
Fluxes
anisotropy
electrical resistivity
Superconducting materials
Energy dissipation
energy dissipation
Microwaves
impedance
Magnetic fields
microwaves
augmentation
magnetic fields

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Takaki, K., Koizumi, A., Hanaguri, T., Nohara, M., Takagi, H., Kitazawa, K., ... Maeda, A. (2002). Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C. Physical Review B - Condensed Matter and Materials Physics, 66(18), 1845111-1845115. [184511].

Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C. / Takaki, K.; Koizumi, A.; Hanaguri, T.; Nohara, Minoru; Takagi, H.; Kitazawa, K.; Kato, Y.; Tsuchiya, Y.; Kitano, H.; Maeda, A.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 18, 184511, 01.11.2002, p. 1845111-1845115.

Research output: Contribution to journalArticle

Takaki, K, Koizumi, A, Hanaguri, T, Nohara, M, Takagi, H, Kitazawa, K, Kato, Y, Tsuchiya, Y, Kitano, H & Maeda, A 2002, 'Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C', Physical Review B - Condensed Matter and Materials Physics, vol. 66, no. 18, 184511, pp. 1845111-1845115.
Takaki K, Koizumi A, Hanaguri T, Nohara M, Takagi H, Kitazawa K et al. Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C. Physical Review B - Condensed Matter and Materials Physics. 2002 Nov 1;66(18):1845111-1845115. 184511.
Takaki, K. ; Koizumi, A. ; Hanaguri, T. ; Nohara, Minoru ; Takagi, H. ; Kitazawa, K. ; Kato, Y. ; Tsuchiya, Y. ; Kitano, H. ; Maeda, A. / Effects of superconducting gap anisotropy on the flux flow resistivity in Y(N1-xPtx)2B2C. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 66, No. 18. pp. 1845111-1845115.
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AU - Kato, Y.

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