L773:2397 4648
Sökning: L773:2397 4648 > Degenerate plaquett...
Degenerate plaquette physics as key ingredient of high-temperature superconductivity in cuprates
-
- Danilov, Michael (författare)
- University of Hamburg
-
- van Loon, Erik G.C.P. (författare)
- 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 Bremen
-
- Brener, Sergey (författare)
- University of Hamburg
- visa fler...
- visa färre...
- (creator_code:org_t)
- 2022-04-28
- 2022
- Engelska.
- Ingår i: npj Quantum Materials. - : Springer Science and Business Media LLC. - 2397-4648. ; 7:1
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta mer i SwePub
- Av författaren/redakt...
- Danilov, Michael
- van Loon, Erik G ...
- Brener, Sergey
- Iskakov, Sergei
- Katsnelson, Mikh ...
- Lichtenstein, Al ...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Fysik
- Artiklar i publikationen
- npj Quantum Mate ...
- Av lärosätet
- Lunds universitet
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
