Condensation energy in the spin-fermion model for cuprates Institutional Repository Document uri icon

abstract

  • We use the Scalapino-White relation between the condensation energy and the difference between the dynamical structure factor in the normal and the superconducting states to compute the condensation energy in the spin-fermion model. We show that at strong coupling, the extra low-frequency spectral weight associated with the resonance peak in the dynamical structure factor in a superconductor is compensated only at energies $sim J$ which are much larger than the superconducting gap $Delta$. We argue that in this situation, the condensation energy is large and well accounts for the data for cuprates.

author list (cited authors)

  • Abanov, A. r., & Chubukov, A. V.

citation count

  • 0

complete list of authors

  • Abanov, Ar||Chubukov, Andrey V

Book Title

  • arXiv

publication date

  • September 1999