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Neutral fermion, charge-e boson excitations in the resonating-valence-bond state and superconductivity in La2CuO4-based compounds

Physical Review B, ISSN: 0163-1829, Vol: 37, Issue: 1, Page: 627-630
1988
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Metrics Details

  • Citations
    260
    • Citation Indexes
      260
  • Captures
    31

Article Description

We derive the neutral fermion excitation spectrum in the resonating-valence-bond state based on a fermion-boson field theory. It is formally shown that charge-e bosons are created upon doping while the neutral fermion excitation remains gapless, predicting a linear low-temperature specific heat CT in the superconducting state. Bose condensation in doped samples leads to the observed superconductivity with true "off-diagonal long-range order." © 1988 The American Physical Society.

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