L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
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.
L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
O.F. Schirmer, W. Berlinger, et al.
Solid State Communications
K.A. Chao
Physical Review B
Dipanjan Gope, Albert E. Ruehli, et al.
IEEE T-MTT