@article{34045,
  author = {C.J.D Hetherington and Ramamoorthy Ramesh and M.A O'Keefe and R Kilaas and G Thomas and S.M Green and H.L Luo},
  title = {High-resolution electron microscopy of the c=30.5 Å and c=38.2 Å polytypoids in the Bi-Ca-Sr-Cu-O superconductor},
  abstract = {We report results of high-resolution structure imaging, image processing, and simulation of the c=30.5 Å (Tc =80 K) and c=38.2 Å (Tc =115 K) superconducting polytypoids in the Bi-Ca-Sr-Cu-O system. The increase in c parameter is due to the insertion of two layers of Cu-O perovskite+Ca atoms in each unit cell. From the processed image and simulations, it appears that the central Cu layer in the c=38.2 Å polytypoid may be oxygen deficient. In addition, the image simulation experiments suggest that the oxygen atoms in the Bi-O layers are located at the face center of the Bi lattice.},
  year = {1988},
  journal = {Applied Physics Letters},
  volume = {53},
  number = {11},
  pages = {1016-1018},
  issn = {00036951},
  doi = {10.1063/1.100074},
  note = {cited By 23},
  language = {eng},
}