Experimental evidence of twin-planes pinning in the ab plane studied in large c-axis ${\mathrm{YBa}}_2{\mathrm{Cu}}_3{\mathrm{O}}_7$ samples

S. Sanfilippo, A. Sulpice, O. Laborde, D. Bourgault, Th. Fournier, and R. Tournier

Phys. Rev. B 58, 15189 (1998)