Exponential Temperature Dependence of the Penetration Depth in Single Crystal [Formula presented]

F. Manzano, A. Carrington, N. E. Hussey, S. Lee, A. Yamamoto, S. Tajima

研究成果: Article

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The temperature dependence of the London penetration depth, [Formula presented], was measured in both single crystal and polycrystalline [Formula presented] samples by a high-resolution, radio frequency technique. A clear exponential temperature dependence of [Formula presented] was observed at low temperature, indicating [Formula presented]-wave pairing. A BCS fit to the lowest temperature data gives an in-plane energy gap [Formula presented] of [Formula presented] [Formula presented], which is significantly smaller than the standard BCS weak coupling value of 3.5. We find that the data are best described by a two-gap model.

元の言語English
ページ数1
ジャーナルPhysical Review Letters
88
発行部数4
DOI
出版物ステータスPublished - 2002 1 1
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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