Low-energy collective modes, Ginzburg-Landau theory, and pseudogap behavior in superconductors with long-range pairing interactions
Kun Yang, S. L. Sondhi
DOI 10.1103/PhysRevB.62.11778 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We study the superconducting instability in systems with long- but finite-ranged attractive pairing interactions. We show that such long-ranged superconductors exhibit a class of fluctuations in which the internal structure of the Cooper pair wave function is soft, and thus lead to “pseudogap” behavior in which the actual transition temperature is greatly depressed from its mean-field value. These fluctuations are not phase fluctuations of the standard superconducting order parameter, and lead to a highly unusual Ginzburg-Landau description. We suggest that the crossover between the BCS limit of a short-ranged attraction and our problem is of interest in the context of superconductivity in the underdoped cuprates.
Similar papers
Phase fluctuations in two-dimensional superconductors and pseudogap phenomenon
similarity 0.92Xu-Cheng Wang & Yang Qi
Source status unknown — claims are unverified
Ginzburg-Landau energy of multiband superconductors with interband pairing
similarity 0.92K. V. Samokhin
Source status unknown — claims are unverified
Competing Orders and Quantum Phase Fluctuations on the Low-Energy Excitations and Pseudogap Phenomena of Cuprate Superconductors
similarity 0.91C. -T. Chen et al. · 2006 · arXiv:cond-mat/0606257
Source status unknown — claims are unverified
Probing d-wave pairing correlations in the pseudogap regime of the cuprate superconductors via low-energy states near impurities
similarity 0.91Daniel E. Sheehy et al.
Source status unknown — claims are unverified
Low energy collective modes, Ginzburg-Landau theory, and pseudogap behavior in superconductors with long-range pairing interactions
similarity 0.91Kun Yang & S. L. Sondhi · 2000 · arXiv:cond-mat/0004471
Source status unknown — claims are unverified
Ginzburg-Landau Expansion in a Toy Model of Superconductor with Pseudogap
similarity 0.91A. I. Posazhennikova & M. V. Sadovskii · 1998 · arXiv:cond-mat/9806199
Source status unknown — claims are unverified