Citation: Jian MENG, Yu Fang REN, Xiao Guang LI. HALL EFFECT IN NIOBIUM DOPED YBa₂Cu₃O_7-y SUPERCONDUCTOR[J]. Chinese Chemical Letters, ;1993, 4(5): 467-468. shu

HALL EFFECT IN NIOBIUM DOPED YBa₂Cu₃O_7-y SUPERCONDUCTOR

Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022

Received Date: 23 November 1992

Fund Project: This project was supported by National Natural Science foundation of China.

YBa₂Cu_3-xNb_xO_7-y superconductors have been prepared. XRD shows that the system remains orthorhombic for all composition. Substitution of Nb⁵⁺ for Cu²⁺ occurs in the Cu (2) sites. The introduction of the Nb⁵⁺ ions produces some extra free-electrons. These electrons recombine with the carriers of the system. It makes the mobility and the Hall number of YBa₂Cu_3-xNb_xO_7-y decrease and also result in a depression in Tc.
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