Pair Density Wave in the Pseudogap State of High Temperature Superconductors
Han-Dong Chen, Oskar Vafek, Ali Yazdani, Shou-Cheng Zhang
DOI 10.1103/PhysRevLett.93.187002 · Physical Review Letters
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Abstract
Recent scanning tunneling microscopy experiments of Bi2Sr2CaCu2O8+δ have shown evidence of real-space organization of electronic states at low energies in the pseudogap state [M. Vershinin et al., Science, 303, 1995 (2004).]. We argue based on symmetry considerations as well as model calculations that the experimentally observed modulations are due to a density wave of d-wave Cooper pairs without global phase coherence. We show that scanning tunneling microscopy measurements can distinguish a pair density wave from more typical electronic modulations such as those due to charge density wave ordering or scattering from an on site periodic potential.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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