Phys. Rev. Lett. 103, 217005 (2009) [4 pages]Model of Quasiparticles Coupled to a Frequency-Dependent Charge-Density-Wave Order Parameter in Cuprate SuperconductorsReceived 28 July 2009; published 20 November 2009 We investigate a model where superconducting electrons are coupled to a frequency dependent charge-density wave order parameter Δr(ω). Our approach can reconcile the simultaneous existence of low-energy Bogoljubov quasiparticles and high energy electronic order as observed in scanning tunneling microscopy (STM) experiments. The theory accounts for the contrast reversal in the STM spectra between positive and negative bias observed above the pairing gap. An intrinsic relation between scattering rate and inhomogeneities follows naturally. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.217005
DOI:
10.1103/PhysRevLett.103.217005
PACS:
74.20.−z, 71.10.Hf, 74.25.Jb, 74.72.−h
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.