Evidence for Quasiparticle Decay in Photoemission from Underdoped Cuprates
R. B. Laughlin
Abstract
I argue that the ``gap'' recently observed at the Brillouin zone face of cuprate superconductors in photoemission by Marshall et al [Phys. Rev. Lett. 76, 4841 (1996)] and Ding et al [Nature 382, 54 (1996)] is evidence for the decay of the injected hole into a spinon-holon pair.
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