  We have developed a single-direction melt growth method in which REBCO
melt-textured bulks grow only vertically from a seed plate utilizing the
difference in peritectic temperatures of REBCO. Entirely c-grown YBCO, DyBCO
and GdBCO bulks with various sizes and shapes were successfully fabricated with
high reproducibility. Disk-shaped bulks showed high trapped fields with almost
concentric field distributions, reflecting homogeneous and boundaryless bulky
crystal. In particular, a YBCO bulk with a 32 mm diameter trapped a high field
more than 1 T at 77 K. Furthermore, rectangular and joined hexagonal REBCO
bulks were successfully fabricated, showing designed field-trapping
distributions reflecting their shapes through well-connected superconducting
joints among bulks.
