DOI: 10.1139/p84-107. Superconducting energy gap of NbS<sub>2</sub>

10.1139/p84-107

Crossref journal-article

Canadian Science Publishing

Canadian Journal of Physics (155)

Abstract

The superconducting energy gaps of small particles (1–10 μm) of 2H–NbS2 and 2H–NbSe2 have been measured by far-infrared (FIR) transmission spectroscopy. Comparison of these results with previous FIR measurements made on millimetre-size single crystals of 2H–NbSe2 validates the use of the novel method of sample preparation used here. Comparison of the gap frequencies (νg) with the superconducting transition temperature (Tc) determined by magnetic susceptibility measurements indicates that 2H–NbS2, unlike 2H–NbSe2, exhibits non-Bardeen–Cooper–Schrieffer (BCS)-like behaviour, with hνg/kTc = 2.3.

Bibliography

Kennedy, R. J., & Clayman, B. P. (1984). Superconducting energy gap of NbS2. Canadian Journal of Physics, 62(8), 776â779.

Authors 2

R. J. Kennedy (first)
B. P. Clayman (additional)

References 0 Referenced 12

None

Dates

Type	When
Created	14 years, 4 months ago (April 23, 2011, 4:20 p.m.)
Deposited	1 month, 3 weeks ago (July 2, 2025, 3:24 p.m.)
Indexed	1 month, 3 weeks ago (July 3, 2025, 12:18 a.m.)
Issued	41 years ago (Aug. 1, 1984)
Published	41 years ago (Aug. 1, 1984)
Published Print	41 years ago (Aug. 1, 1984)

Funders 0

None

BibTeX

@article{Kennedy_1984, title={Superconducting energy gap of NbS2}, volume={62}, ISSN={1208-6045}, url={http://dx.doi.org/10.1139/p84-107}, DOI={10.1139/p84-107}, number={8}, journal={Canadian Journal of Physics}, publisher={Canadian Science Publishing}, author={Kennedy, R. J. and Clayman, B. P.}, year={1984}, month=aug, pages={776–779} }

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  "abstract": "<jats:p> The superconducting energy gaps of small particles (1\u201310\u2002\u03bcm) of 2H\u2013NbS<jats:sub>2</jats:sub> and 2H\u2013NbSe<jats:sub>2</jats:sub> have been measured by far-infrared (FIR) transmission spectroscopy. Comparison of these results with previous FIR measurements made on millimetre-size single crystals of 2H\u2013NbSe<jats:sub>2</jats:sub> validates the use of the novel method of sample preparation used here. Comparison of the gap frequencies (\u03bd<jats:sub>g</jats:sub>) with the superconducting transition temperature (T<jats:sub>c</jats:sub>) determined by magnetic susceptibility measurements indicates that 2H\u2013NbS<jats:sub>2</jats:sub>, unlike 2H\u2013NbSe<jats:sub>2</jats:sub>, exhibits non-Bardeen\u2013Cooper\u2013Schrieffer (BCS)-like behaviour, with h\u03bd<jats:sub>g</jats:sub>/kT<jats:sub>c</jats:sub>\u2002=\u20022.3. </jats:p>",
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