PINNING IN THE FLUX-LINE-CUTTING REGIME OF BI2SR2CA1CU2O8 SINGLE-CRYSTALS AT HIGH-FIELD

被引：11

作者：

DANNA, G ^{[1
]}

ANDRE, MO ^{[1
]}

INDENBOM, MV ^{[1
]}

BENOIT, W ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA

来源：

PHYSICA C | 1994年 / 230卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90452-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a low-frequency torsion pendulum we show that in a Bi2Sr2Ca1Cu2O8 Single crystal the irreversibility line B-irr(T) is frequency dependent down to 10(-5) Hz in the high-field regime. The activation energy has a logarithmic field dependence, U-0(B)=U*1n(B*/B). A microscopic model for flux-line-cutting and pancake collision yields quantitative expressions for U(0)and for B-irr( T)=B* exp(- T/T*), which reproduce the experimental data very well.

引用

页码：115 / 120

页数：6

共 28 条

[21] FIELD-INDUCED 3D TO 2D CROSSOVER OF SHIELDING CURRENT PATH IN BI2SR2CACU2OX [J].

NAKAMURA, N ;

GU, GD ;

KOSHIZUKA, N .

PHYSICAL REVIEW LETTERS, 1993, 71 (06) :915-918

[22] TOPOLOGICAL GLASS-TRANSITION IN ENTANGLED FLUX STATE [J].

OBUKHOV, SP ;

RUBINSTEIN, M .

PHYSICAL REVIEW LETTERS, 1990, 65 (10) :1279-1282

[23] CRITICAL-STATE OF THE WEAKLY COUPLED 2-DIMENSIONAL SUPERCONDUCTOR BI2SR2CACU2O8 [J].

RODRIGUEZ, E ;

GOFFMAN, MF ;

ARRIBERE, A ;

DELACRUZ, F ;

SCHNEEMEYER, LF .

PHYSICAL REVIEW LETTERS, 1993, 71 (20) :3375-3378

[24] SQUID PICOVOLTOMETRY OF SINGLE-CRYSTAL BI2SR2CACU2O8+DELTA - OBSERVATION OF THE CROSSOVER FROM HIGH-TEMPERATURE ARRHENIUS TO LOW-TEMPERATURE VORTEX-GLASS BEHAVIOR [J].

SAFAR, H ;

GAMMEL, PL ;

BISHOP, DJ ;

MITZI, DB ;

KAPITULNIK, A .

PHYSICAL REVIEW LETTERS, 1992, 68 (17) :2672-2675

[25]

SAFAR H, 1992, PHYS REV B, V44, P7737

[26]

SAFAR H, 1976, PHYS REV B, V14, P238

[27]

SHILLING A, 1993, PHYS REV LETT, V71, P1899

[28] COLLECTIVE VORTEX MOTION IN A-MOGE SUPERCONDUCTING THIN-FILMS [J].

WHITE, WR ;

KAPITULNIK, A ;

BEASLEY, MR .

PHYSICAL REVIEW LETTERS, 1993, 70 (05) :670-673

← 1 2 3 →