Experimental determination of the superconducting pairing state in YBCO by D. A. Wollman and others 2026-10-20
Primary paper, Experimental determination of the superconducting pairing state in YBCO from the phase coherence of YBCO-Pb dc SQUIDs, Physical Review Letters 71, 2134–2137. doi.org/10.1103/PhysRevLett.71.2134