Hall effect of the high-Tc superconducting oxides Bi-Ca-Sr-Cu-O and Tl2Ca2Ba2Cu3Ox

J. Clayhold; N. P. Ong; P. H. Hor; C. W. Chu

doi:10.1103/PhysRevB.38.7016

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Hall effect of the high-Tc superconducting oxides Bi-Ca-Sr-Cu-O and Tl2Ca2Ba2Cu3Ox

J. Clayhold, N. P. Ong, P. H. Hor, C. W. Chu

DOI 10.1103/PhysRevB.38.7016 · Physical Review B

T1

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Abstract

The Hall coefficient RH has been measured in ceramic samples of the high-Tc superconductors Bi-Ca-Sr-Cu-O and Tl2Ca2Ba2Cu3Ox. The Bi compound is a mixture of the 2:1:2:2 and 2:2:2:3 phases whereas the Tl compound is single-phase 2:2:2:3. In both systems, RH is T dependent and positive. A 1T dependence is observed in the Bi compound. We discuss the significance of the low Hall number 1RHe (equivalent to ∼0.1 holes per Cu ion near Tc) implied by the large RH observed in both systems.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Tl2Ca2Ba2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	130	Pressure not reported	onset
Tl2Ca2Ba2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	116	Pressure not reported	zero_resistance
Tl2Ca2Ba2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	123	Pressure not reported	zero_resistance
BiCaSrCu2Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	110	Pressure not reported	onset