Details

Autor(en) / Beteiligte

• Kacharava, G G
• El'tsev, Y U F
• Karasik, V R
• Dovidenko, E U
• Tsintsadze, G A

Titel

YBa sub 2 Cu sub 3 O sub 7--y Single-Crystal Growth by the Method of Horizontally Directed Temperature Gradient

Ist Teil von

• Superconductor science & technology, 1991-12, Vol.4 (12), p.707-710

Erscheinungsjahr

1991

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• YBCO single crystals 1-2-3 were grown from a melted mixture of YBa sub 2 Cu sub 3 O sub 7--y --BaO--CuO using the methods of horizontally directed cooling in the zone melting equipment. This method makes it possible to grow high quality single crystals with dimensions up to 3 x 2 x 0.15 mm exp 3 , which may then be extracted simply from the crucible. Differences in superconducting properties, parameters of crystal structure and the microstructure were found in single crystals grown in Al sub 2 O sub 3 and ZrO sub 2 crucibles. It is possible that these differences are connected with the different stabilities of the crucibles used and, consequently, with the presence of impurities in the melted charge during the single crystal growth process.