@article{34019,
  author = {Q Li and X.X Xi and X.D Wu and A Inam and S Vadlamannati and W.L McLean and T Venkatesan and Ramamoorthy Ramesh and D.M Hwang and J.A Martinez and L Nazar},
  title = {Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices},
  abstract = {The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors. © 1990 The American Physical Society.},
  year = {1990},
  journal = {Physical Review Letters},
  volume = {64},
  number = {25},
  pages = {3086-3089},
  issn = {00319007},
  doi = {10.1103/PhysRevLett.64.3086},
  note = {cited By 313},
  language = {eng},
}