CRITICAL-CURRENT DENSITY AND FLUX-PINNING IN GD1-XYXBA2CU3O7-Y EPITAXIAL THIN-FILMS
文献类型:期刊论文
作者 | WANG, RL ; Li, HC ; YIN, B ; LI, JW ; RON, XS ; DONG, C ; WU, F ; CHEN, H ; ZHAO, ZX |
刊名 | PHYSICA C
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出版日期 | 1995 |
卷号 | 250期号:1-2页码:55 |
关键词 | BA-CU-O SUPERCONDUCTORS YBA2CU3O7-DELTA TRANSPORT CRYSTALS CREEP |
ISSN号 | 0921-4534 |
中文摘要 | Low-electric-field E=j(s) curves, normalized dynamical relaxation rate Q(T)=d ln(j(s))/d In(E), and experimental critical current density j(s)(E = E(c)) were measured from 10 to 85 K with the magnetic sweeping method. By taking a general assumption for the activation energy U(j(s), T) = U-c( T)f [j(s)(T)/j(c)(T)], with t = T/T-c, we obtained the U(j, T=O K) relation by scaling all the E-j(s) curves of different temperatures to one smooth curve with U-c(T) and j(c)(T) determined by the so-called generalized inversion scheme. It is shown that the important parameter c = In(upsilon(o)B), which was actually taken as a fitting parameter in, the scaling process in previous work, can be predetermined. It is also found that the resulting U(j, T=O K) relation based on the E=j(s) curves for T less than or equal to 79 K can be well interpreted with the collective-pinning model. However, the data for T>79 K start to deviate from this interpretation, which may be attributed to the reverse hopping of vortices. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/35309] ![]() |
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 | WANG, RL,Li, HC,YIN, B,et al. CRITICAL-CURRENT DENSITY AND FLUX-PINNING IN GD1-XYXBA2CU3O7-Y EPITAXIAL THIN-FILMS[J]. PHYSICA C,1995,250(1-2):55. |
APA | WANG, RL.,Li, HC.,YIN, B.,LI, JW.,RON, XS.,...&ZHAO, ZX.(1995).CRITICAL-CURRENT DENSITY AND FLUX-PINNING IN GD1-XYXBA2CU3O7-Y EPITAXIAL THIN-FILMS.PHYSICA C,250(1-2),55. |
MLA | WANG, RL,et al."CRITICAL-CURRENT DENSITY AND FLUX-PINNING IN GD1-XYXBA2CU3O7-Y EPITAXIAL THIN-FILMS".PHYSICA C 250.1-2(1995):55. |
入库方式: OAI收割
来源:物理研究所
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