DIMENSIONAL CROSSOVER EFFECT IN J(C) CHARACTERISTICS OF CHEMICAL VAPOR-DEPOSITION PROCESSED YBA2CU3O7-DELTA FILMS

被引:9
作者
AWAJI, S
WATANABE, K
KOBAYASHI, N
YAMANE, H
HIRAI, T
机构
[1] Institute for Materials Research, Tohoku University, Sendai, Aoba-ku, 980
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 11A期
关键词
CHEMICAL VAPOR DEPOSITION; YBA2CU3O7-DELTA FILM; CRITICAL CURRENT DENSITY; DIMENSIONAL CROSSOVER; 2D FLUX PINNING; 3D CONVENTIONAL FLUX PINNING; ANISOTROPY;
D O I
10.1143/JJAP.31.L1532
中图分类号
O59 [应用物理学];
学科分类号
摘要
The critical current densities of chemical vapor deposition (CVD) processed YBa2Cu3O7-delta films were resistively measured in fields up to 13 T and in a temperature range from 4.2 to 77.3 K. For B perpendicular to the c-axis (B perpendicular-to c), an anomaly in the temperature dependence of J(c) was observed at T(d) congruent-to 50-60 K and the field dependence of J(c) drastically changed at T(d). Since T(d) was almost in agreement with the estimated dimensional crossover temperature T(co), it is suggested that the change of dimensionality influences the J(c) properties.
引用
收藏
页码:L1532 / L1535
页数:4
相关论文
共 10 条
[1]   DISSIPATION IN HIGHLY ANISOTROPIC SUPERCONDUCTORS [J].
KES, PH ;
AARTS, J ;
VINOKUR, VM ;
VANDERBEEK, CJ .
PHYSICAL REVIEW LETTERS, 1990, 64 (09) :1063-1066
[2]   THEORY OF UPPER CRITICAL-FIELD IN LAYERED SUPERCONDUCTORS [J].
KLEMM, RA ;
LUTHER, A ;
BEASLEY, MR .
PHYSICAL REVIEW B, 1975, 12 (03) :877-891
[3]   PREPARATION AND SUPERCONDUCTING PROPERTIES OF Y-BA-CU-O FILMS ON OXIDE POLYCRYSTALLINE SUBSTRATES BY CHEMICAL VAPOR-DEPOSITION [J].
KUROSAWA, H ;
YAMANE, H ;
HIRAI, T ;
WATANABE, K ;
AWAJI, S ;
KOBAYASHI, N ;
MUTO, Y .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 (05) :192-198
[4]  
LOWRENCE WE, 1971, 12TH P INT C LOW TEM, P361
[5]   2-DIMENSIONAL BEHAVIOR AND CRITICAL-CURRENT ANISOTROPY IN EPITAXIAL BI2SR2CACU2O8+X THIN-FILMS [J].
SCHMITT, P ;
KUMMETH, P ;
SCHULTZ, L ;
SAEMANNISCHENKO, G .
PHYSICAL REVIEW LETTERS, 1991, 67 (02) :267-270
[6]   JOSEPHSON EFFECT AND SMALL-ANGLE GRAIN-BOUNDARY IN YBCO THIN-FILM BRIDGE [J].
SUZUKI, H ;
KUROSAWA, H ;
MIYAGAWA, K ;
HIROTSU, Y ;
ERA, M ;
YAMASHITA, T ;
YAMANE, H ;
HIRAI, T .
IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (02) :3320-3323
[7]   STRONG VORTEX PINNING INTRINSIC IN HIGH-TC OXIDE SUPERCONDUCTORS [J].
TACHIKI, M ;
TAKAHASHI, S .
SOLID STATE COMMUNICATIONS, 1989, 70 (03) :291-295
[8]  
UMEMURA T, 1991, ADV SUPERCONDUCTIVIT, V4, P355
[9]   CRITICAL CURRENTS AT 77.3-K UNDER MAGNETIC-FIELDS UP TO 27-T FOR AN Y-BA-CU-O FILM PREPARED BY CHEMICAL VAPOR-DEPOSITION [J].
WATANABE, K ;
YAMANE, H ;
KUROSAWA, H ;
HIRAI, T ;
KOBAYASHI, N ;
IWASAKI, H ;
NOTO, K ;
MUTO, Y .
APPLIED PHYSICS LETTERS, 1989, 54 (06) :575-577
[10]  
WATANABE K, 1990, ADV SUPERCONDUCTIVIT, V3, P473