Superconducting energy gap in YNi2B2C

T. Ekino; H. Fujii; M. Kosugi; Y. Zenitani; J. Akimitsu

doi:10.1016/0921-4534(94)92485-6

Superconducting energy gap in YNi₂B₂C

T. Ekino, H. Fujii, M. Kosugi, Y. Zenitani, J. Akimitsu

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

25 Citations (Scopus)

Abstract

The first tunneling measurements of the superconducting energy gap in YNi₂B₂C have been carried out. Observed energy gap value is typically 2Δ_p-p = 5.3±0.1 meV from the peak-to-peak amplitude in dI/dV, while 2Δ = 3.7±0.1 meV is determined from the standard analysis using the BCS theory. Since the T_c measured from the tunnel junction is 12 K, the ratio 2Δ/k_BT_c = 3.5±0.1 is obtained. This is in good agreement with the BCS prediction, indicating that the superconducting mechanism in this compound is a conventional type.

Original language	English
Pages (from-to)	2529-2530
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(94)92485-6
Publication status	Published - Dec 1994
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Superconducting energy gap in YNi2B2C",

abstract = "The first tunneling measurements of the superconducting energy gap in YNi2B2C have been carried out. Observed energy gap value is typically 2Δp-p = 5.3±0.1 meV from the peak-to-peak amplitude in dI/dV, while 2Δ = 3.7±0.1 meV is determined from the standard analysis using the BCS theory. Since the Tc measured from the tunnel junction is 12 K, the ratio 2Δ/kBTc = 3.5±0.1 is obtained. This is in good agreement with the BCS prediction, indicating that the superconducting mechanism in this compound is a conventional type.",

author = "T. Ekino and H. Fujii and M. Kosugi and Y. Zenitani and J. Akimitsu",

year = "1994",

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T1 - Superconducting energy gap in YNi2B2C

AU - Ekino, T.

AU - Fujii, H.

AU - Kosugi, M.

AU - Zenitani, Y.

AU - Akimitsu, J.

PY - 1994/12

Y1 - 1994/12

N2 - The first tunneling measurements of the superconducting energy gap in YNi2B2C have been carried out. Observed energy gap value is typically 2Δp-p = 5.3±0.1 meV from the peak-to-peak amplitude in dI/dV, while 2Δ = 3.7±0.1 meV is determined from the standard analysis using the BCS theory. Since the Tc measured from the tunnel junction is 12 K, the ratio 2Δ/kBTc = 3.5±0.1 is obtained. This is in good agreement with the BCS prediction, indicating that the superconducting mechanism in this compound is a conventional type.

AB - The first tunneling measurements of the superconducting energy gap in YNi2B2C have been carried out. Observed energy gap value is typically 2Δp-p = 5.3±0.1 meV from the peak-to-peak amplitude in dI/dV, while 2Δ = 3.7±0.1 meV is determined from the standard analysis using the BCS theory. Since the Tc measured from the tunnel junction is 12 K, the ratio 2Δ/kBTc = 3.5±0.1 is obtained. This is in good agreement with the BCS prediction, indicating that the superconducting mechanism in this compound is a conventional type.

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