Transport properties of Tl2Ba2CaCu2O8 weak links on LaAlO3 bicrystal substrates
文献类型:期刊论文
作者 | Chen, YF ; Ivanov, ZG ; Stepantsov, EA ; Tzalenchuk, AY ; Zarembinski, S ; Claeson, T ; Johansson, LG |
刊名 | JOURNAL OF APPLIED PHYSICS
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出版日期 | 1996 |
卷号 | 79期号:12页码:9221 |
关键词 | GRAIN-BOUNDARY JUNCTIONS SQUIDS NOISE 77-K |
ISSN号 | 0021-8979 |
通讯作者 | Chen, YF (reprint author), CHALMERS UNIV TECHNOL,DEPT PHYS,S-41296 GOTHENBURG,SWEDEN. |
中文摘要 | Josephson junctions and de superconducting quantum interference devices (SQUIDs) have been fabricated in ex situ epitaxial Tl2Ba2CaCu2O8 films on bicrystal LaAlO3 substrates with symmetric 32 degrees [001] tilt grain boundaries. The critical temperature T-c, of the junctions was in the range 105-107 K and the critical current densities at 77 K varied between 3X10(2) and 3X10(4) A/cm(2), two or three orders of magnitude less than those of the film. The I-V curves are described by a resistively shunted junction model. Close to T-c, the temperature dependence of the critical current was described by (1 - T/T-c)(2). The flux noise spectra S-Phi(f) of de SQUIDs were measured in the locked-loop regime with constant current bias at temperatures up to 94 K. The white noise level was 50 mu Phi(0)/root Hz at 77 K. The crossover frequency to 1/f noise was low, about 5 Hz, and the flux noise level at 1 Hz was 440 mu Phi(0)/root Hz. (C) 1996 American Institute of Physics. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-23 |
源URL | [http://ir.iphy.ac.cn/handle/311004/46126] ![]() |
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 | Chen, YF,Ivanov, ZG,Stepantsov, EA,et al. Transport properties of Tl2Ba2CaCu2O8 weak links on LaAlO3 bicrystal substrates[J]. JOURNAL OF APPLIED PHYSICS,1996,79(12):9221. |
APA | Chen, YF.,Ivanov, ZG.,Stepantsov, EA.,Tzalenchuk, AY.,Zarembinski, S.,...&Johansson, LG.(1996).Transport properties of Tl2Ba2CaCu2O8 weak links on LaAlO3 bicrystal substrates.JOURNAL OF APPLIED PHYSICS,79(12),9221. |
MLA | Chen, YF,et al."Transport properties of Tl2Ba2CaCu2O8 weak links on LaAlO3 bicrystal substrates".JOURNAL OF APPLIED PHYSICS 79.12(1996):9221. |
入库方式: OAI收割
来源:物理研究所
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