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VOLUME 49 (1989) | ISSUE 6 | PAGE 352
Change in the sign of the Hall effect in a superconducting transition in Bi2CaSr2Cu2Ox single crystals
It is shown that the Hall voltage VH in superconducting single crystals of Bi2CaSr2Cu2Ox in the resistive state in a magnetic field is characterized by a thermally activated dependence and that its sign is opposite to that in the normal state. The results are explained in terms of the vortex motion.