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Macroscopic quantum tunneling in antiferromagnets

โœ Scribed by Bernard Barbara; Eugene M. Chudnovsky


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
293 KB
Volume
145
Category
Article
ISSN
0375-9601

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๐Ÿ“œ SIMILAR VOLUMES


Macroscopic quantum tunneling and therma
โœ F. Sharifi; J.L. Gavilano; D.J. Van Harlingen ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 158 KB

We have studied the transition rate from the zero-voltage state in a dc SQUID as a function of applied flux and temperature. We observe a crossover from thermal activation to macroscopic quantum tunneling at a flux-dependent temperature. The thermal rates are significantly suppressed, suggesting tha