H. Safar, J.H. Cho, et al.
Applied Physics Letters
The temperature dependence of the magnetic penetration depth is determined directly from low-field dc magnetization measurements on single-crystal Y-Ba-Cu-O (Tc=89.7 K, "Tc=0.2 K). The results are consistent with the behavior expected from a BCS (s wave) superconductor. © 1989 The American Physical Society.
H. Safar, J.H. Cho, et al.
Applied Physics Letters
I. Felner, U. Yaron, et al.
Physica C: Superconductivity and its applications
R.L. Greene, S.S.P. Parkin, et al.
Physica B+C
R.A. Pollak, F. Holtzberg, et al.
Physical Review Letters