Diamagnetism above Tc in underdoped Bi2.2Sr1.8Ca2Cu3O10+d

Tetsuya Iye, Takenori Nagatochi, Ryusuke Ikeda +1

Single crystals of ${\mathrm{Bi}}_{2+x}{\mathrm{Sr}}_{2-x}{\mathrm{Ca}}_2{\mathrm{Cu}}_3{\mathrm{O}}_{10+\delta }$(Bi2223) with $x=0.2$ were grown by a traveling solvent floating zone method in order to inve…