BCS-like superconductivity in MgCNi3
文献类型:期刊论文
作者 | Lin, JY ; Ho, PL ; Huang, HL ; Lin, PH ; Zhang, YL ; Yu, RC ; Jin, CQ ; Yang, HD |
刊名 | PHYSICAL REVIEW B
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出版日期 | 2003 |
卷号 | 67期号:5 |
关键词 | TEMPERATURE SPECIFIC-HEAT PEROVSKITE MGCNI3 WAVE SUPERCONDUCTORS ELECTRONIC-STRUCTURE MIXED-STATE FIELD YBA2CU3O7-DELTA DEPENDENCE MGCXNI3 VORTEX |
ISSN号 | 1098-0121 |
通讯作者 | Lin, JY: Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan. |
中文摘要 | The low-temperature specific heat C(T,H) of the superconductor MgCNi3 has been measured in detail. DeltaC/gamma(n)T(c)=1.97 is estimated from the anomaly at T-c. At low temperatures, the electronic contribution in the superconducting state follows C-es/gamma(n)T(c)approximate to7.96 exp(-1.46T(c)/T). The magnetic-field dependence of gamma(H) is found to be linear with respect to H. T-c estimated from the McMillan formula agrees well with the observed value. All the specific-heat data appear to be consistent with each other within the moderate-coupling BCS context. It is amazing that such a superconductor unstable to ferromagnetism behaves so conventionally. The Debye temperature Theta(D)=287 K and the normal state gamma(n)=33.6 mJ/mol K-2 are determined for the present sample. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/34167] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Lin, JY,Ho, PL,Huang, HL,et al. BCS-like superconductivity in MgCNi3[J]. PHYSICAL REVIEW B,2003,67(5). |
APA | Lin, JY.,Ho, PL.,Huang, HL.,Lin, PH.,Zhang, YL.,...&Yang, HD.(2003).BCS-like superconductivity in MgCNi3.PHYSICAL REVIEW B,67(5). |
MLA | Lin, JY,et al."BCS-like superconductivity in MgCNi3".PHYSICAL REVIEW B 67.5(2003). |
入库方式: OAI收割
来源:物理研究所
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