Pairfield fluctuations of a 2D Hubbard model
| Autor: | Douglas J. Scalapino, Thomas Maier |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Condensed matter physics Hubbard model Doping Condensed Matter Physics lcsh:Atomic physics. Constitution and properties of matter Electronic Optical and Magnetic Materials lcsh:QC170-197 Condensed Matter::Superconductivity lcsh:TA401-492 Superconducting transition temperature Condensed Matter::Strongly Correlated Electrons lcsh:Materials of engineering and construction. Mechanics of materials Cooper pair Pseudogap |
| Zdroj: | npj Quantum Materials, Vol 4, Iss 1, Pp 1-4 (2019) |
| ISSN: | 2397-4648 |
| DOI: | 10.1038/s41535-019-0169-9 |
| Popis: | At temperatures above the superconducting transition temperature, the pairfield susceptibility provides information on the nature of the pairfield fluctuations. Here, we study the d-wave pairfield susceptibility of a 2D Hubbard model for a doping which has a pseudogap (PG) and for a doping which does not. In both cases, there will be a region of Kosterlitz–Thouless fluctuations as the transition at TKT is approached. Above this region, we find evidence for pairfield-order parameter-phase fluctuations for dopings with a PG and BCS Cooper pair fluctuations for dopings without a PG. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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