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Spin-charge-separated superconductivity: The two-component Abelian-Higgs model

Journal Article · · Physical Review, B: Condensed Matter; (United States)
 [1]
  1. Department of Physics and Astronomy, California State University, Los Angeles, California 90032 (United States) Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
A square-lattice gauge-theory model for spin-charge-separated superconductivity is introduced. The phases of the spinon and holon order parameters couple gauge invariantly via a statistical gauge field, which arises from the implicit strong interaction physics. We find that physical electronic phase correlations show a superconductor--normal-metal phase transition of the Berezinskii-Kosterlitz-Thouless type, while statistical gauge-field excitations are strictly gapless. These results are discussed in the context of both the superconducting and the normal-state properties of the oxide superconductors.
OSTI ID:
5313698
Journal Information:
Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:5; ISSN PRBMDO; ISSN 0163-1829
Country of Publication:
United States
Language:
English