G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures
Based on macroscopic quantum coherence effects arising from pair tunneling and flux quantization, a series of tricrystal experiments have been designed and carried out to test the order parameter symmetry in high-T c cuprate superconductors. By using a scanning SQUID microscope, we have directly and non-invasively observed the spontaneously generated half-integer flux quantum effect in controlled-orientation tricrystal cuprate superconducting systems. The presence or absence of the half-integer flux quantum effect as a function of the tricrystal geometry allows us to prove that the order parameter symmetry in the YBCO and T12201 systems is consistent with that of the dx2-y2pair state.
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures
Douglass S. Kalika, David W. Giles, et al.
Journal of Rheology
A. Krol, C.J. Sher, et al.
Surface Science
Kigook Song, Robert D. Miller, et al.
Macromolecules