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Hall resistivity sign reversal in superconductor's mixed state

✍ Scribed by H.L. Ji; K.W. Wong

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
155 KB
Volume
256
Category
Article
ISSN
0375-9601

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✦ Synopsis

In this Letter, we propose a mixed-charge model to explain the sign reversals of Hall resistivity for p-type high T c superconductors in the mixed state. The applied field vs temperature boundaries separating positive and negative Hall resistivities would be suppressed in both the underdoped and overdoped regimes, and the suppression is more severe in the overdoped regime. Although flux pinning damps the magnitude of Hall resistivity, from both positive and negative sides, it does not change either the temperature or the applied field values where the Hall resistivity changes sign.

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