Spectral Distribution of Cu Nuclear Spin-Lattice Relaxation Time in Superconducting Bi2Sr2CaCu2O8+d

We successfully observed the frequency distribution of Cu nuclear spin-lattice relaxation time in the superconducting state of single crystals Bi2212, which we believe corresponds to a theoretical suggestion from the analysis of the energy gap distribution in STM/STS (Mori et al., Phys. Rev. Lett. 101 (2008) 247003).