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
收藏
页码：1302 / 1304
页数：3
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