Stability of exfoliated $Bi_2Sr_2Dy_xCa_1-xCu_2O_8+δ$ studied by Raman microscopy

L. J. Sandilands, J. X. Shen, G. M. Chugunov, S. Y. F. Zhao, Shimpei Ono, Yoichi Ando, K. S. Burch.
Stability of exfoliated $Bi_2Sr_2Dy_xCa_1-xCu_2O_8+δ$ studied by Raman microscopy
Phys. Rev. B 82, 064503 (2010)