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Spiral growth of Bi2Sr2CaCu2Oy single crystals using KCl flux technique

Journal Article


Abstract


  • Crystals of Bi2Sr2CaCu2Oy (Bi2212) have been grown using KCl as flux. It was found, for the first time, the Bi2212 single-crystal growth was mainly controlled by a spiral growth mechanism if the crystals were grown on the flux surface. Single, double and three-head spirals with square and polygonized shapes were observed. Magnetisation measurements show an enhanced flux pinning in the spiral grown crystals compared with crystals grown through a layer-by-layer mechanism. The enhancement in flux pinning may be attributable to the spiral edges and the screw dislocations induced by the spiral growth of the crystals.

Publication Date


  • 1997

Citation


  • Wang, X. L., Horvat, J., Liu, H. K., & Dou, S. X. (1997). Spiral growth of Bi2Sr2CaCu2Oy single crystals using KCl flux technique. Journal of Crystal Growth, 173(3-4), 380-385. doi:10.1016/S0022-0248(96)00906-2

Scopus Eid


  • 2-s2.0-0031117322

Start Page


  • 380

End Page


  • 385

Volume


  • 173

Issue


  • 3-4

Abstract


  • Crystals of Bi2Sr2CaCu2Oy (Bi2212) have been grown using KCl as flux. It was found, for the first time, the Bi2212 single-crystal growth was mainly controlled by a spiral growth mechanism if the crystals were grown on the flux surface. Single, double and three-head spirals with square and polygonized shapes were observed. Magnetisation measurements show an enhanced flux pinning in the spiral grown crystals compared with crystals grown through a layer-by-layer mechanism. The enhancement in flux pinning may be attributable to the spiral edges and the screw dislocations induced by the spiral growth of the crystals.

Publication Date


  • 1997

Citation


  • Wang, X. L., Horvat, J., Liu, H. K., & Dou, S. X. (1997). Spiral growth of Bi2Sr2CaCu2Oy single crystals using KCl flux technique. Journal of Crystal Growth, 173(3-4), 380-385. doi:10.1016/S0022-0248(96)00906-2

Scopus Eid


  • 2-s2.0-0031117322

Start Page


  • 380

End Page


  • 385

Volume


  • 173

Issue


  • 3-4