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2008 | 113 | 1 | 215-218
Article title

Point-Contact Spectroscopy of Superconducting MgCNi_3 Single Crystals

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EN
Abstracts
EN
The first point-contact spectroscopy measurements on MgCNi_3 single crystals of very good quality are presented. The measurements have been performed in the temperature range from 1.5 K up to 10 K and at magnetic fields up to 6 T. The superconducting energy gap Δ of the system is found to be scattered between 1 and 1.2 meV which gives the 2Δ/k T_c ratio between BCS weak-coupling value of ~3.5 and a strong coupling of about 4.2. The excess current evaluated in magnetic field indicates the presence of a single energy gap.
Keywords
EN
Publisher

Year
Volume
113
Issue
1
Pages
215-218
Physical description
Dates
published
2008-01
received
2007-07-09
Contributors
author
  • Centre of Low Temperature Physics (CLTP) IEP SAS & FS UPJŠ, Watsonova 47, 040 01 Košice, Slovakia
author
  • Centre of Low Temperature Physics (CLTP) IEP SAS & FS UPJŠ, Watsonova 47, 040 01 Košice, Slovakia
  • Centre of Low Temperature Physics (CLTP) IEP SAS & FS UPJŠ, Watsonova 47, 040 01 Košice, Slovakia
author
  • Centre of Low Temperature Physics (CLTP) IEP SAS & FS UPJŠ, Watsonova 47, 040 01 Košice, Slovakia
author
  • NCRICS and Department of Physics, Pohang University of Science and, Technology, Pohang 790-784, Republic of Korea
author
  • NCRICS and Department of Physics, Pohang University of Science and, Technology, Pohang 790-784, Republic of Korea
author
  • NCRICS and Department of Physics, Pohang University of Science and, Technology, Pohang 790-784, Republic of Korea
author
  • NCRICS and Department of Physics, Pohang University of Science and, Technology, Pohang 790-784, Republic of Korea
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1052kz
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