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Anisotropic ac screening response in the vortex state of superconducting Bi2Sr2CaCu2O8 crystals

โœ Scribed by D.G. Steel; J.M. Graybeal

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
191 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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โœฆ Synopsis

We report measurements of ac screening response in single crystals of superconducting Bi2Sr2CaCu208 as a function of temperature, and applied dc field magnitude and direction. The ac screening response is measured inductively: dc fields are applied with an electromagnet, while a separate ceil provides a small ac drive field. The orientation between the applied dc field and the ac probing field can be varied. For de fields parallel to the crystal c-axis we observe significant anisotropy in the screening response for ac fields parallel to and perpendicular to the c-axis.

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