DIMENSIONALITY OF FLUX-PINNING IN (BI,PB)2SR2CA2CU3O10+DELTA-AG TAPES WITH COLUMNAR DEFECTS - CROSSOVER FROM 2-DIMENSIONAL TO 3-DIMENSIONAL BEHAVIOR

被引：17

作者：

KUMMETH, P ^{[1
]}

STRULLER, C ^{[1
]}

NEUMULLER, HW ^{[1
]}

SAEMANNISCHENKO, G ^{[1
]}

机构：

[1] SIEMENS AG,RES LABS,W-9105 ERLANGEN,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 10期

关键词：

D O I：

10.1063/1.112101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We introduced columnar defects into (Bi,Pb)2Sr2Ca2Cu3O10+delta Ag tapes by irradiation with 2.65 GeV Au-197 ions to investigate the dimensionality of pinning for this compound. Samples were irradiated up to fluences of 3.5 x 10(11) ions/cm2 at a temperature of 100 K. The ion beam was directed both perpendicular and under a tilt angle of -60-degrees to the tape surface. Our samples showed homogeneous columnar line defects throughout the whole thickness of the superconducting core. As a novel result we found evidence for marked deviations from two-dimensional behavior at elevated temperatures both in magnetic and in transport measurements.

引用

页码：1302 / 1304

页数：3

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