JETP Letters -- December 10, 1990 -- Volume 52, Issue 11 pp. 630-635

Evidence of classical percolation theory in the transport properties of ceramic YBa₂Cu₃O_{7 -}

V. F. Gantmakher, A. M. Neminski

, and D. V. Shovkun

Institute of Solid State Physics, Academy of Sciences of the USSR

Percolationtheory is used for a comparative analysis of curves ofthe superconducting transition in ceramic YBa₂Cu₃O_{7 -} in a zero magneticfield found through measurements of the resistance, R(T), and thedynamic susceptibility, chi (T). When there is an oxygen deficiency ( delta > 0),the grains have a wide distribution with respect to thesuperconducting transition temperature T_c.

PACS: 74.70.Vy, 74.60.Mj

JETP Letters -- December 10, 1990 -- Volume 52, Issue 11 pp. 630-635

Evidence of classical percolation theory in the transport properties of ceramic YBa2Cu3O7 -

Evidence of classical percolation theory in the transport properties of ceramic YBa₂Cu₃O_{7 -}