Orthorhombic distortion at the superconducting transition in YBa2Cu3O7: Evidence for anisotropic pairingP.M. HornD.T. Keaneet al.1987Physical Review Letters
Magnetic imaging of the paramagnetic Meissner effect in the granular high-Tc superconductor Bi2Sr2CaCu2OxJ.R. KirtleyA.C. Motaet al.1999Journal of Physics Condensed Matter