Abstract
Large-scale twin structures in single crystal Bi2Ca1Sr2Cu2O8 (2122) are reported for the first time. Symmetrical 90° (i.e., a-b) twins with a [110] type twin boundary were observed. A characteristic layer-growth morphology and jagged twin walls suggest that twin formation occurred layer by layer during crystal growth; i.e., the twins were growth twins. Hot-stage optical microscopy, x-ray diffraction, and electron microscopy results are discussed with reference to twin morphology.
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Han, P.D., Asthana, A., Xu, Z. et al. Growth twins in Bi2Ca1Sr2Cu2O8 superconductor single crystals. Journal of Materials Research 5, 909–912 (1990). https://doi.org/10.1557/JMR.1990.0909
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DOI: https://doi.org/10.1557/JMR.1990.0909