| Measurement of Magnetization Curve and Magnetic Relaxation for 2H-NbSe2 Crystals |
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| 作者姓名： | ZhangNing LiuHai-lin YuZhu-xing XiongRui ShiJing |
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| 作者单位： | [1]SchoolofPhysicsandTechnology,WuhanUniversity,Wuhan430072,Hubei,China [2]InternationalCenterforMaterialPhysics,CAS,Shenyang110016,Liaonin,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChina (1 0 1 740 56) |
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| 摘 要： | The characteristics of electronic transport properties: behaviors of magnetization curve and magnetic relaxation of a typical normal superconductor 2H-NbSe2 are investigated. The results show that Tc and △Tc of the samples are 7. 2,0. 18 K, indicating that superconducting energy gap at zero temperature is 1. 1 meV. No fish tail shape is found in the magnetization curves at several temperatures. The relationship between remnant magnetic moment and time reveals that the magnetic flux creep of the sample agrees with the Kim-Anderson thermal activation model with the relaxation rate S=0.000 36 at T=6 K.
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| 关 键 词： | 磁化曲线 磁性弛豫 2H-NbSe2晶体 超导体 |
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