Published May 1995 | Version v1
Journal article

Study of Ca-substitution on YBa2Cu4O8 superconductors by positron lifetime spectrum

  • 1. Henan Normal Univ., Xinxiang (China). Dept. of Physics

Description

Positron lifetime spectra were studied for Y1-xCaxBa2Cu4O8(x 0.00-0.15) superconductors. The local electron density ne and vacancy concentration Cυ were evaluated as a function of Casubstitution content x. A peak appears near x = 0.1 which just correspond to maxmium Tc value. The characteristic of positron annihilation and the correlation with superconductivity were also discussed

Additional details

Publishing Information

Journal Title
Chinese Journal of Low Temperature Physics
Journal Volume
17
Journal Issue
3
Journal Page Range
p. 191-195.
ISSN
1000-3258
CODEN
DWXUES