LATENT TRACK FORMATION INDUCED BY HIGH-ENERGY HEAVY-IONS IN SUPERCONDUCTIVE COPPER OXIDES

被引：141

作者：

HARDY, V ^{[1
]}

GROULT, D ^{[1
]}

HERVIEU, M ^{[1
]}

PROVOST, J ^{[1
]}

RAVEAU, B ^{[1
]}

BOUFFARD, S ^{[1
]}

机构：

[1] CTR INTERDISAPLINAIRE DE RECH IONS LOURDS,F-14040 CAEN,FRANCE

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1991年 / 54卷 / 04期

关键词：

D O I：

10.1016/0168-583X(91)95395-T

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Lattice imaging (HREM) of the defects induced by 5.3 GeV Pb ions in YBa2Cu3O7-delta (delta less-than-or-equal-to 0.1) ceramics provides evidence of latent tracks formation whose influence on the electron transport properties (R, J(c)) has been studied. It is clearly established that the electronic energy loss plays a predominant role in the radiation damage mechanism of 1-2-3 superconductors whenever the energy deposited by inelastic collisions exceeds a threshold value close to 8 MeV/mu-m. A track induced enhancement of the critical magnetization current density is observed at low fluences (phi-t less-than-or-equal-to 3 x 10(11) cm-2) but it appears to depend on the value and the orientation of the applied magnetic field with respect to the direction of the tracks.

引用

页码：472 / 481

页数：10

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