Bazaliy, Ya. B.Demler, EugeneZhang, Shou-Cheng2016-08-311997Bazaliy, Ya. B., Eugene Demler, and Shou-Cheng Zhang. 1997. “Search for the pi-Resonance in Two-Particle Tunneling Experiments of YBCO Superconductors.” Physical Review Letters 79 (10) (September 8): 1921–1924. doi:10.1103/physrevlett.79.1921.0031-9007http://nrs.harvard.edu/urn-3:HUL.InstRepos:28243204A recent theory of the resonant neutron scattering peaks in YBCO superconductors predicts the existence of a sharp spin-triplet two-particle collective mode (the “pi-resonance”) in the normal state. In this paper, we propose an experiment in which the pi-resonance could be probed directly in a two-particle tunneling measurement.en-USJournal Article2016-08-3110.1103/PhysRevLett.79.1921