David B. Mitzi
Journal of Materials Chemistry
The presence or absence of the half-integer flux quantum effect in controlled orientation tricrystal grain boundary rings is a general test of the phase of the superconducting order parameter. One such test proves that this effect is symmetry dependent, and that the order parameter in YBa2Cu3O7-ς has lobes and nodes consistent with d-wave symmetry. Our measurements show that the flux in the 1/2 integer ground state is quantized to Φ0/2 within ± 3%. This puts limits on the imaginary component of the superconducting order parameter in YBa2Cu3O7-ς. © 1995 Plenum Publishing Corporation.
David B. Mitzi
Journal of Materials Chemistry
O.F. Schirmer, W. Berlinger, et al.
Solid State Communications
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
P.C. Pattnaik, D.M. Newns
Physical Review B