NONLINEAR U(J) DEPENDENCE DETERMINED DIRECTLY FROM LOW-ELECTRIC-FIELD E-J(S) CURVES IN YBA2CU3O7-DELTA THIN-FILMS
文献类型：期刊论文
| 作者 | WEN, HH ; ZHAO, ZX ; WIJNGAARDEN, RJ ; RECTOR, J ; DAM, B ; GRIESSEN, R |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1995 |
| 卷号 | 52期号:6页码:4583 |
| 关键词 | HIGH-TC SUPERCONDUCTORS HIGH-TEMPERATURE SUPERCONDUCTORS CREEP ACTIVATION-ENERGY FLUX-CREEP CURRENT-DENSITY MAGNETIC-RELAXATION SINGLE-CRYSTAL BI2SR2CACU2OX MOTION |
| ISSN号 | 0163-1829 |
| 通讯作者 | WEN, HH (reprint author), CHINESE ACAD SCI,INST PHYS,NATL SUPERCONDUCT LAB,POB 603,BEIJING 100080,PEOPLES R CHINA. |
| 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 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49994]  |
| 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 | WEN, HH,ZHAO, ZX,WIJNGAARDEN, RJ,et al. NONLINEAR U(J) DEPENDENCE DETERMINED DIRECTLY FROM LOW-ELECTRIC-FIELD E-J(S) CURVES IN YBA2CU3O7-DELTA THIN-FILMS[J]. PHYSICAL REVIEW B,1995,52(6):4583. |
| APA | WEN, HH,ZHAO, ZX,WIJNGAARDEN, RJ,RECTOR, J,DAM, B,&GRIESSEN, R.(1995).NONLINEAR U(J) DEPENDENCE DETERMINED DIRECTLY FROM LOW-ELECTRIC-FIELD E-J(S) CURVES IN YBA2CU3O7-DELTA THIN-FILMS.PHYSICAL REVIEW B,52(6),4583. |
| MLA | WEN, HH,et al."NONLINEAR U(J) DEPENDENCE DETERMINED DIRECTLY FROM LOW-ELECTRIC-FIELD E-J(S) CURVES IN YBA2CU3O7-DELTA THIN-FILMS".PHYSICAL REVIEW B 52.6(1995):4583. |
入库方式： OAI收割
来源：物理研究所
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