EXPERIMENTAL-EVIDENCE OF QUANTUM TUNNELING IN TLBACACUO

被引：18

作者：

GARCIA, A ^{[1
]}

ZHANG, XX ^{[1
]}

TESTA, AM ^{[1
]}

FIORANI, D ^{[1
]}

TEJADA, J ^{[1
]}

机构：

[1] ITSE,ROME,ITALY

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 50期

关键词：

D O I：

10.1088/0953-8984/4/50/021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Experimental evidence of a crossover from a thermally to a non-thermally activated flux motion is reported for TlBaCaCuO. It was obtained by measuring the time decay of both zero-field-cooled and remanent magnetization. The measured relaxation rates at low temperature are in good agreement with the prediction of the quantum collective creep theory for anisotropic superconductors in the low-field-single-vortex pinning.

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页码：10341 / 10346

页数：6

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