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Flux motion by quantum tunneling

โœ Scribed by A.C. Mota; G. Juri; P. Visani; A. Pollini; T. Teruzzi; K. Aupke; B. Hilti

Book ID
103945200
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
444 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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โœฆ Synopsis

Experimental evidence is presented showing that at millikelvin temperatures flux creep in the organic superconductor (BEDT-TrF)2 Cu(NCS)2 and in the high-Te superconductor Y1Ba2Cu408 involves mainly quantum tunneling of vortices. The measured tunneling rates at T ~ 0 are in very good agreement with values given by the quantum collective creep theory.

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