PaperNegative magnetoresistance in small superconducting loops and wiresP. Santhanam, C.P. Umbach, et al.Physical Review B
PaperSymmetry of the order parameter in the high-Tc superconductor YBa2Cu3O7- δJ.R. Kirtley, C.C. Tsuei, et al.Nature
PaperSymmetry tests using the half-integer flux quantum effect in cuprate superconducting ringsJ.R. Kirtley, C.C. Tsuei, et al.Journal of Superconductivity