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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02892naa a2200349 4500 | |
| 001 | oai:lup.lub.lu.se:984fa376-4039-4500-8c21-e4bceef49f4a | |
| 003 | SwePub | |
| 008 | 220701s2022 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/984fa376-4039-4500-8c21-e4bceef49f4a2 URI |
| 024 | 7 | a https://doi.org/10.1038/s41535-022-00454-62 DOI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Danilov, Michaelu University of Hamburg4 aut |
| 245 | 1 0 | a Degenerate plaquette physics as key ingredient of high-temperature superconductivity in cuprates |
| 264 | c 2022-04-28 | |
| 264 | 1 | b Springer Science and Business Media LLC,c 2022 |
| 520 | a We study the physics of high-temperature cuprate superconductors starting from the highly degenerate four-site plaquette of the t− t′− U Hubbard model as a reference system. The degeneracy causes strong fluctuations when a lattice of plaquettes is constructed. We show that there is a large binding energy between holes when a set of four plaquettes is considered. The next-nearest-neighbour hopping t′ plays a crucial role in the formation of these strongly bound electronic bipolarons whose coherence at lower temperature could be the explanation for superconductivity. A complementary approach is cluster dual fermion starting from a single degenerate plaquette, which contains the relevant short-ranged fluctuations from the beginning. It gives d-wave superconductivity as the leading instability under a reasonably broad range of parameters. The origin of the pseudogap is also discussed in terms of the coupling of degenerate plaquettes. Thus, some of the essential elements of cuprate superconductivity appear from the local plaquette physics. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 700 | 1 | a van Loon, Erik G.C.P.u Lund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,University of Bremen4 aut0 (Swepub:lu)er2547va |
| 700 | 1 | a Brener, Sergeyu University of Hamburg4 aut |
| 700 | 1 | a Iskakov, Sergeiu University of Michigan4 aut |
| 700 | 1 | a Katsnelson, Mikhail I.u Radboud University Nijmegen4 aut |
| 700 | 1 | a Lichtenstein, Alexander I.u University of Hamburg4 aut |
| 710 | 2 | a University of Hamburgb Matematisk fysik4 org |
| 773 | 0 | t npj Quantum Materialsd : Springer Science and Business Media LLCg 7:1q 7:1x 2397-4648 |
| 856 | 4 | u http://dx.doi.org/10.1038/s41535-022-00454-6x freey FULLTEXT |
| 856 | 4 8 | u https://lup.lub.lu.se/record/984fa376-4039-4500-8c21-e4bceef49f4a |
| 856 | 4 8 | u https://doi.org/10.1038/s41535-022-00454-6 |
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