Modeling a striped pseudogap state
arXiv:0910.0981 · doi:10.1103/PhysRevB.81.024501
Abstract
We study the electronic structure within a system of phase-decoupled one-dimensional superconductors coexisting with stripe spin and charge density wave order. This system has a nodal Fermi surface (Fermi arc) in the form of a hole pocket and an antinodal pseudogap. The spectral function in the antinodes is approximately particle-hole symmetric contrary to the gapped regions just outside the pocket. We find that states at the Fermi energy are extended whereas states near the pseudogap energy have localization lengths as short as the inter-stripe spacing. We consider pairing which has either local d-wave or s-wave symmetry and find similar results in both cases, consistent with the pseudogap being an effect of local pair correlations. We suggest that this state is a stripe ordered caricature of the pseudogap phase in underdoped cuprates with coexisting spin-, charge-, and pair-density wave correlations. Lastly, we also model a superconducting state which 1) evolves smoothly from the pseudogap state, 2) has a signature subgap peak in the density of states, and 3) has the coherent pair density concentrated to the nodal region.
12 pages, 12 figures, extended discussion, added references; v3, added figure of antinodal spectra for normal/pseudo/sc states
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Cited by in corpus (11)
- On the Reconstructed Fermi Surface in the Underdoped Cuprates
- Cuprate superconductors as viewed through a striped lens
- Electronic Structure of the Cuprate Superconducting and Pseudogap Phases from Spectroscopic Imaging STM
- Two routes to magnetic order by disorder in underdoped cuprates
- Pseudogap-induced coexistence of Fermi arcs and Fermi pockets in cuprate superconductors
- Robustness of the nodal d-wave spectrum to strongly fluctuating competing order
- Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
- Modeling of Superconducting Stripe Phases in High-Tc Cuprates
- Colossal transverse magnetoresistance due to nematic superconducting phase fluctuations in a copper oxide
- The Origin of the Pseudogap in Underdoped HTSC
- The fermi arc and fermi pocket in cuprates in a short-range diagonal stripe phase