Details

Autor(en) / Beteiligte

• Naidyuk, Yu G
• Moskalenko, A V
• Yanson, I K
• Geibel, C

Titel

Point contact studies of the superconducting gap of CeRu2

Ist Teil von

• Fizika nizkih temperatur (Kiev), 1998-05, Vol.24 (5), p.495-497

Erscheinungsjahr

1998

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• The measured dV/dI(F) curves of point contacts between the intermetallic compound CeRu2 in the superconducting state and the normal metal Cu correspond fairly well to the Blonder-Tinkham-Klapwijk model. It is used to obtain temperature and magnetic field dependence of the superconducting gap Delta. The Delta(T) dependence corresponds well to the BCS theory. Additionally, a region of gapless superconductivity is identified. The gap decreases approximately linearly in a magnetic field and vanishes in a field of 3.5 T, which is well below the upper critical field of 6 T and close to the irreversibility field. (Author)