Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO1-y single crystals

K. Hashimoto; T. Shibauchi; T. Kato; K. Ikada; R. Okazaki; H. Shishido; M. Ishikado; H. Kito; A. Iyo; H. Eisaki; S. Shamoto; Y. Matsuda

doi:10.1143/JPSJS.77SC.145

Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO_1-y single crystals

K. Hashimoto, T. Shibauchi, T. Kato, K. Ikada, R. Okazaki, H. Shishido, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto, Y. Matsuda

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

4 Citations (Scopus)

Abstract

By using a sensitive superconducting cavity resonator, we measure the temperature dependence of in-plane microwave penetration depth λ_ab in underdoped single crystals of the iron-pnictide superconductor PrFeAsO_1?y (T_c ∼ 35 K). At low temperatures, λ_ab(T ) shows very flat temperature dependence, which indicates that the superconducting gap function Δ(k) is non-zero all over the Fermi surface.

Original language	English
Pages (from-to)	145-146
Number of pages	2
Journal	journal of the physical society of japan
Volume	77
Issue number	SUPPL. C
DOIs	https://doi.org/10.1143/JPSJS.77SC.145
Publication status	Published - 2008
Externally published	Yes

Keywords

Pairing symmetry
Quasiparticle excitations
Superconducting gap

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJS.77SC.145

Cite this

Hashimoto, K., Shibauchi, T., Kato, T., Ikada, K., Okazaki, R., Shishido, H., Ishikado, M., Kito, H., Iyo, A., Eisaki, H., Shamoto, S., & Matsuda, Y. (2008). Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO_1-y single crystals. journal of the physical society of japan, 77(SUPPL. C), 145-146. https://doi.org/10.1143/JPSJS.77SC.145

Hashimoto, K, Shibauchi, T, Kato, T, Ikada, K, Okazaki, R, Shishido, H, Ishikado, M, Kito, H, Iyo, A, Eisaki, H, Shamoto, S & Matsuda, Y 2008, 'Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO_1-y single crystals', journal of the physical society of japan, vol. 77, no. SUPPL. C, pp. 145-146. https://doi.org/10.1143/JPSJS.77SC.145

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T1 - Evidence for fully gapped superconductivity from microwave penetration depth measurements in PrFeAsO1-y single crystals

AU - Hashimoto, K.

AU - Shibauchi, T.

AU - Kato, T.

AU - Ikada, K.

AU - Okazaki, R.

AU - Shishido, H.

AU - Ishikado, M.

AU - Kito, H.

AU - Iyo, A.

AU - Eisaki, H.

AU - Shamoto, S.

AU - Matsuda, Y.

PY - 2008

Y1 - 2008

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AB - By using a sensitive superconducting cavity resonator, we measure the temperature dependence of in-plane microwave penetration depth λab in underdoped single crystals of the iron-pnictide superconductor PrFeAsO1?y (Tc ∼ 35 K). At low temperatures, λab(T ) shows very flat temperature dependence, which indicates that the superconducting gap function Δ(k) is non-zero all over the Fermi surface.

KW - Pairing symmetry

KW - Quasiparticle excitations

KW - Superconducting gap

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