Year: 1997
Type: article
Abstract: Several experiments suggest that the charge carriers in the normal state of certain cuprate superconductors reside on domain walls. In an earlier paper, we suggested that several aspects of the anomalous dynamical behavior of these materials could be explained, at least qualitatively, on this basis. Here, using results on the ground state energy of the one-dimensional Hubbard model (soluble by Bethe ansatz techniques) as a function of charge density, we argue that a nonzero charge density localized to domain walls is a very plausible consequence of strong short-range electron-electron repulsion. We also suggest a method to suppress meandering of the walls and thereby enhance their signature in neutron diffraction.
Source: Physical Review Letters
Authors: Chetan Nayak, Frank Wilczek
Institution: Princeton University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
Award: PROBLEMS IN PARTICLE THEORY
OpenAlex ID: W1968734046