Pairing, Pseudogap and Fermi Arcs in Cuprates
Author | : |
Publisher | : |
Total Pages | : 14 |
Release | : 2014 |
ISBN-10 | : OCLC:925461519 |
ISBN-13 | : |
Rating | : 4/5 (19 Downloads) |
Book excerpt: We use Angle Resolved Photoemission Spectroscopy (ARPES) to study the relationship between the pseudogap, pairing and Fermi arcs in cuprates. High quality data measured over a wide range of dopings reveals a consistent picture of Fermiology and pairing in these materials. The pseudogap is due to an ordered state that competes with superconductivity rather than preformed pairs. Pairing does occur below Tpair ~ 150K and significantly above Tc, but well below T* and the doping dependence of this temperature scale is distinct from that of the pseudogap. The d-wave gap is present below Tpair, and its interplay with strong scattering creates "artificial" Fermi arcs for Tc