Anomalous Hall effect from vortex motion in high-Tc superconductors

J. L. Chen; T. J. Yang

doi:10.1103/PhysRevB.50.4064

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Anomalous Hall effect from vortex motion in high-Tc superconductors

J. L. Chen, T. J. Yang

DOI 10.1103/PhysRevB.50.4064 · Physical Review B

T1

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Abstract

In this work, the unusual Seebeck effect is taken into consideration in explaining the possible origin of the anomalous Hall effect for high-Tc superconductors. Combining Maki’s theory of transport entropy and Tinkham’s theory of resistive transition, we explain why the anomalous Hall effect can be observed in high-Tc superconductors, but is absent in most conventional superconductors. The behavior of ρxy(H,T) in our theory is qualitatively consistent with experiments. In addition, our theory not only predicts that ρxy will become positive from ρxy<0 when the temperature is decreased in constant magnetic field, but also predicts that ‖ρxy‖∝ρxx2 in the region of ρxy<0 and that the negative ρxy will diminish with increasing defect concentration.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2Ca2Cu3O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown