POINT-CONTACT TUNNELING STUDIES ON (Y1-XPRX)BA2CU3O7-DELTA SINGLE-CRYSTALS

Authors
SRIKANTH H RAYCHAUDHURI AK PENG JL GREENE RL
Citation
H. Srikanth et al., POINT-CONTACT TUNNELING STUDIES ON (Y1-XPRX)BA2CU3O7-DELTA SINGLE-CRYSTALS, Physica. C, Superconductivity, 218(1-2), 1993, pp. 245-250
Citations number
19
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
218
Issue
1-2
Year of publication
1993
Pages
245 - 250
Database
ISI
SICI code
0921-4534(1993)218:1-2<245:PTSO(S>2.0.ZU;2-I
Abstract
We present point contact tunneling studies on single crystals of (Y1-x Prx)Ba2Cu3O7-delta (X less-than-or-equal-to 0.5) with T(c) varying fro m 92 to 30 K. Superconducting pp features are clearly seen in undoped YBCO but the Pr-doped systems do not show any trace of such features. Based on our results we point out that gapless superconductivity in Pr -doped YBCO system arises due to strong pair breaking effects associat ed with magnetic scattering.