Abstract
Single crystals of YBa 2Cu 3O x in sizes up to 10 x5 mm 2 in area and 50 μm in thickness have grown by a BaOCuO self-flux method with alkali chlorides MCl (M=Na, K, and Rb) as additives. T c of a crystal annealed in an oxygen atmosphere is determined magnetically to be 86 K. The X-ray diffractometry for the same sample, however, suggests the structure of orthorhombic-II featured by a lower T c. This discrepancy is probably explained by inhomogeneous oxidation which may divide the crystal into high T c- and low T c-parts. Added MCl is found to evaporate completely during soaking and to be absent when crystal growth is in progress. The role of MCl is presumably to remove impurities from the flux surface thus enhancing the crystal growth.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
