Electron diffraction studies of the incommensurate modulations in (Bi-Pb)-Sr-Ca-Cu-O superconductors

M. Clin , K. El Boussiri , J. Rezpski , D. Morin , J. Schneck

We have studied the incommensurate modulations of lead free Bi-Sr-Ca-Cu-O and lead substituted (Bi-Pb)-Sr-Ca-Cu-O superconductors at different temperatures between 110 K and 300 K. The modulations are temperature independent in this interval. The incommensurate modulations of two lead substituted compounds of nominal compositions Bi1.8Pb0.2Sr2Ca2Cu3Ox and Bi1.5Pb0.5Sr 2Ca2Cu3Oy have been observed at room temperature. The Pb modulation value decreases with a higher lead concentration.

Keywords: Bi sub 1.8 Pb sub 0.2 Sr sub 2 Ca sub 2 Cu sub 3 O sub x; Bi sub 1.5 Pb sub 0.5 Sr sub 2 Ca sub 2 Cu sub 3 O sub y; bismuth compounds; calcium compounds; crystal atomic structure of inorganic compounds; electron diffraction examination of materials; high temperature superconductors; lead compounds; strontium compounds; electron diffraction; incommensurate modulations; 110 to 300 K

Domains: Physics archives

M. Clin, K. El Boussiri, J. Rezpski, D. Morin, J. Schneck. Electron diffraction studies of the incommensurate modulations in (Bi-Pb)-Sr-Ca-Cu-O superconductors. Revue de Physique Appliquée, 1990, 25 (1), pp.13-16. ⟨10.1051/rphysap:0199000250101300⟩. ⟨jpa-00246154⟩