PAIR-BREAKING EFFECT OF HIGH-CURRENT DENSITIES ON THE SUPERCONDUCTING TRANSITION IN YBA2CU3O7-DELTA

被引：38

作者：

KUNCHUR, MN ^{[1
]}

CHRISTEN, DK ^{[1
]}

KLABUNDE, CE ^{[1
]}

PHILLIPS, JM ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.72.752

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The equilibrium resistive transition of YBa2Cu3O7-delta epitaxial films was measured at high pulsed current densities J to promote homogeneous current flow and free flux flow. The superconducting transition temperature T(c) was then depressed as a function of J in fixed fields H. The shifts in T(c), defined near midtransition, scaled following Ginzburg-Landau behavior: DELTAT(c)(H,J)/T(c)(H,0) = [J/J0]2/3, where J0 is a field- and current-independent constant.

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页码：752 / 755

页数：4

相关论文

共 25 条

[11]

KUNCHUR MN, 1993, B AM PHYS SOC, V38, P459

[12] SCALING OF THE LONGITUDINAL AND HALL RESISTIVITIES FROM VORTEX MOTION IN YBA2CU3O7 [J].

LUO, J ;

ORLANDO, TP ;

GRAYBEAL, JM ;

WU, XD ;

MUENCHAUSEN, R .

PHYSICAL REVIEW LETTERS, 1992, 68 (05) :690-693

[13] THERMAL-BOUNDARY RESISTANCE FOR YBA2CU3O7-DELTA FILMS [J].

NAHUM, M ;

VERGHESE, S ;

RICHARDS, PL ;

CHAR, K .

APPLIED PHYSICS LETTERS, 1991, 59 (16) :2034-2036

[14]

ORLANDO TP, 1991, F APPLIED SUPERCONDU

[15] INFLUENCE OF OXYGEN DEFICIENCY ON THE SUPERCONDUCTIVE PROPERTIES OF GRAIN-ALIGNED YBA2CU3O7-DELTA [J].

OSSANDON, JG ;

THOMPSON, JR ;

CHRISTEN, DK ;

SALES, BC ;

KERCHNER, HR ;

THOMSON, JO ;

SUN, YR ;

LAY, KW ;

TKACZYK, JE .

PHYSICAL REVIEW B, 1992, 45 (21) :12534-12547

[16] SIGN REVERSAL OF THE HALL-EFFECT BELOW T(C) IN UNTWINNED SINGLE-CRYSTAL YBA2CU3O7-DELTA [J].

RICE, JP ;

RIGAKIS, N ;

GINSBERG, DM ;

MOCHEL, JM .

PHYSICAL REVIEW B, 1992, 46 (17) :11050-11055

[17] SPECIFIC-HEAT AND PENETRATION DEPTHS OF YBA2CU4O8 AND YBA1.8CA0.2CU4O8 NEAR TC [J].

SCHILLING, A ;

OTT, HR ;

GUO, JD ;

RUSIECKI, S ;

KARPINSKI, J ;

KALDIS, E .

PHYSICA C, 1991, 185 :1755-1756

[18]

SCHILLING A, 1970, THERMOPHYSICAL PROPE, V5

[19]

SCHILLING A, 1970, THERMOPHYSICAL PROPE, V2

[20] ENHANCEMENT OF FLUX PINNING BY H+ AND XE+ IRRADIATION IN EPITAXIAL THIN-FILMS OF BA2YCU3O7-DELTA [J].

SIEGAL, MP ;

VANDOVER, RB ;

PHILLIPS, JM ;

GYORGY, EM ;

WHITE, AE ;

MARSHALL, JH .

APPLIED PHYSICS LETTERS, 1992, 60 (23) :2932-2934