Investigation of the superconducting energy gap in the compound LuNi₂B₂C by the method of point contact spectroscopy: two-gap approximation

• Date: 2006
• Main Authors: Bobrov, N.L., Beloborod’ko, S.I., Tyutrina, L.V., Chernobay, V.N., Yanson, I.K., Naugle, D.G., Rathnayaka, K.D.D.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2006
• Series: Физика низких температур
• Subjects: Experimental Methods and Applications
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/120197
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Investigation of the superconducting energy gap in the compound LuNi₂B₂C by the method of point contact spectroscopy: two-gap approximation / N.L. Bobrov, S.I. Beloborod’ko, L.V. Tyutrina, V.N. Chernobay, I.K. Yanson, D.G. Naugle, K.D.D. Rathnayaka // Физика низких температур. — 2006. — Т. 32, № 4-5. — С. 641–650. — Бібліогр.: 30 назв. — англ.

It is shown that the two-gap approximation is applicable for describing the dV/dI(V) spectra of LuNi₂B₂C–Ag point contacts in a wide interval of temperatures. The values and the temperature dependences of the large and the small gaps in the ab plane and in the c direction were estimated using the...