Correlation between the superconducting transition temperature and Madelung site potential difference in YBa2Cu3OX

T. J. Tang; Lance Horng

doi:10.1016/0921-4526(94)91574-1

Correlation between the superconducting transition temperature and Madelung site potential difference in YBa₂Cu₃O_X

T. J. Tang, Lance Horng

Department of Physics

Research output: Contribution to journal › Article

Abstract

The Madelung site potentials have been calculated in YBa₂Cu₃O_X system in order to find the role of the difference in the Madelung site potentials ΔV_T and ΔV_M within the ionic model. The bond valence sum of each of the ions in the YBa₂Cu₃O_X compound is assigned as charge of the corresponding ion in the calculation of the Madelung site potential. Correlations between ΔV = 0.75 ΔV_M +0.25ΔV_T obtained and superconducting transition temperature T_c are examined and found qualitatively very good agreement with the well-know experimental result for the various oxygen content x. This also supports that the usual believing ΔV_M is of primary important parameter to control T_c. The reason will be argued in this paper.

Original language	English
Pages (from-to)	2149-2150
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91574-1
Publication status	Published - 1994 Feb 2

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

Tang, T. J., & Horng, L. (1994). Correlation between the superconducting transition temperature and Madelung site potential difference in YBa₂Cu₃O_X. Physica B: Physics of Condensed Matter, 194-196(PART 2), 2149-2150. https://doi.org/10.1016/0921-4526(94)91574-1

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10.1016/0921-4526(94)91574-1