Experimental Evidence for Topological Doping in the Cuprates
J. M. Tranquada
Abstract
Some recent experiments that provide support for the concept of topological doping in cuprate superconductors are discussed. Consistent with the idea of charge segregation, it is argued that the scattering associated with the ``resonance'' peak found in YBa(2)Cu(3)O(6+x) and Bi(2)Sr(2)CaCu(2)O(8+δ) comes from the Cu spins and not from the doped holes.
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