Superconducting properties of new heavy fermion superconductor Ce2CoIn8
Superconducting properties of new heavy fermion superconductor Ce2CoIn8
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DOI：
10.1016/j.jmmm.2003.11.052
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发表时间：
2004-05
影响因子：
2.7
通讯作者：
M. Hedo;N. Kurita;Y. Uwatoko;Genfu Chen;S. Ōhara;I. Sakamoto
中科院分区：
文献类型：
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作者：
M. Hedo;N. Kurita;Y. Uwatoko;Genfu Chen;S. Ōhara;I. Sakamoto
我们对单晶Ce2CoIn8进行了低温比热和电阻率测量。我们观察到比热在0.47 K时有明显的跳跃，为体超导性提供了明确的证据。Hc2(0)对h| |a为1.1 T，对h| |c为0.9 T。观测到的未知步长电阻率ta1和Ta2随着场强的增大而向低温偏移，且从场强方向看具有较大的各向异性。
We have performed low-temperature specific heat and electrical resistivity measurements on a single-crystalline Ce2CoIn8. We observed a distinct jump at 0.47 K in specific heat, providing clear evidence of bulk superconductivity. Hc2(0) is 1.1 T for H||a and 0.9 T for H||c, respectively. The unknown steps observed resistivity, Ta1and Ta2, shifted to low-temperature with increasing field and exhibits large anisotropy by field directions.