Specific heat of YNi2B2C analyzed using two-gap model

C. L. Huang*, C. P. Sun, Jiunn-Yuan Lin, H. J. Kim, E. M. Choi, S. I. Lee, H. D. Yang

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

New specific-heat data of YNi2B2C single crystal were measured and analyzed using two-gap model. The obtained Tc=13.77K, γn=19.74 mJ/mol K2, D=533K, ΔC/ γnTc=1.57 are consistent with those of previously reported indicating a good quality of crystal. In the superconducting state, the Ce can not be fitted to a simple isotropic-gap BCS relation. Instead, it can be well described by a two-gap model. The large gap ΔL=2.67meV and small gap ΔS=1.19meV can be obtained with 71% and 29% weighting for the density of states at Fermi surface, respectively. These results are compared with those taken by point-contact spectroscopy recently.

原文English
主出版物標題LOW TEMPERATURE PHYSICS
主出版物子標題24th International Conference on Low Temperature Physics - LT24
頁面685-686
頁數2
DOIs
出版狀態Published - 1 十二月 2006
事件LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
持續時間: 10 八月 200617 十月 2006

出版系列

名字AIP Conference Proceedings
850
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Conference

ConferenceLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
國家/地區United States
城市Orlando, FL
期間10/08/0617/10/06

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