標題: Anisotropic impurity scattering effects on T-c and H-c2 in YBa2Cu3Ox
作者: Lin, JY
Chen, SJ
Chen, SY
Chang, CF
Yang, HD
Tolpygo, SK
Gurvitch, M
Hsu, YY
Ku, HC
物理研究所
Institute of Physics
公開日期: 1-Mar-1999
摘要: We have studied the impurity effects on the superconducting transition temperature T-c and the upper critical field H-c2 in electron irradiated YBa2Cu3Oy with in-plane oxygen defects and YBa2(Cu1-xZnx)(3)O-y. It is found that the effects of the same type of defects or impurities on T-c are the same regardless of the oxygen contents of the samples. Furthermore, T-c decreases slower in irradiated YBa2Cu3Oy than in YBa2(Cu1-xZnx)(3)O-y. This may be well explained by the model that the scattering due to in-plane oxygen defects is more anisotropic than that due to Zn impurities. The different behavior of the reduced slopes (dH(c2)/dT)(Tc)/(dH(c2)/dT)(Tc0) these two types of samples can also be understood in this context. [S0163-1829(99)08309-5].
URI: http://dx.doi.org/10.1103/PhysRevB.59.6047
http://hdl.handle.net/11536/31462
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.59.6047
期刊: PHYSICAL REVIEW B
Volume: 59
Issue: 9
起始頁: 6047
結束頁: 6050
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