Growth of BSCCO and YBCO single crystals using large temperature gradients

Author

Yang, G. ; Sutton, S. ; Shang, P. ; Gough, C.E. ; Abell, J.S.

Author_Institution

Birmingham Univ., UK

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1663

Lastpage

1666

Abstract

A large temperature-gradient technique for growing BSCCO single crystals is reported. For comparison, the growth of YBCO single crystals using the same technique is also reported. BSCCO crystals grown using different cooling rates have been characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), and optical microscopy. It is found that the cooling-rate must be related to the crystal growth-rate to obtain good quality crystals. The growth mechanism and resulting growth steps, dislocation networks, transition temperature and anomalous magnetization are discussed.<>

Keywords

X-ray diffraction examination of materials; atomic force microscopy; barium compounds; bismuth compounds; calcium compounds; crystal growth from melt; dislocations; high-temperature superconductors; magnetic susceptibility; magnetisation; optical microscopy; scanning electron microscope examination of materials; strontium compounds; superconducting transition temperature; transmission electron microscope examination of materials; yttrium compounds; AFM; BSCCO single crystals; BiSrCaCuO; SEM; TEM; X-ray diffraction; YBCO single crystals; YBaCuO; anomalous magnetization; atomic force microscopy; cooling-rate; crystal growth-rate; dislocation networks; growth steps; high temperature superconductor; large temperature-gradient technique; magnetic AC susceptibility; optical microscopy; scanning electron microscopy; transition temperature; transmission electron microscopy; Atom optics; Atomic force microscopy; Bismuth compounds; Cooling; Crystals; Optical microscopy; Scanning electron microscopy; Temperature; Transmission electron microscopy; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233914

Filename

233914