Superconducting energy gap in MgCNi3 single crystals
- Title
- Superconducting energy gap in MgCNi3 single crystals
- Authors
- Kacmarcik, J.; Pribulova, Z.; Szabo, P.; Samuely, P.; Marcenat, C.; Klein, T.; Jang, D. -J.; Lee, H.; null
- Date Issued
- 2008-01
- Publisher
- Pergamon
- Abstract
- Even though MgCNi3 contains large molar volume of magnetic Ni atoms it clearly shows superconductivity. The origin of superconductivity in this material has not yet been clarified. There is a lot of discrepancy in experimental results and physical interpretation where even unconventional pairing or a two-band model have been proposed for the system. All that is based on results obtained on polycrystalline samples. Here we present the first point-contact spectroscopy and ac-calorimetry measurements on the MgCNi3 single crystals of very good quality. Measurements have been performed in the temperature range from 1.5 to 10 K and in magnetic fields up to 8 T. The temperature dependence of the energy gap of the system is presented and compared to the BCS model. (c) 2008 Elsevier Ltd. All rights reserved.
- Keywords
- Superconductors; Specific heat
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29184
- DOI
- 10.1016/J.JPCS.2008.
- ISSN
- 0022-3697
- Article Type
- Conference
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- There are no files associated with this item.
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