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- Title
Spin excitons — a new mechanism of superconducting pairing in copper oxides.
- Authors
Ovchinnikov, S. G.
- Abstract
The Fermi and Bose quasiparticle spectrum in copper oxides is studied in a many-band p-d model taking account of the strong electronic correlations. It is shown that hole-doped systems possess a Bose mode — a spin exciton — which is associated with the singlet–triplet excitation of the two-hole ground-state term of CuO4 clusters. Intercluster hopping leads to fermion–boson interaction with a spin exciton as the intermediate boson. Such a mechanism does not exist for n-type systems. © 1996 American Institute of Physics.
- Subjects
COPPER oxide; FREE electron theory of metals; SPIN excitations
- Publication
JETP Letters, 1996, Vol 64, Issue 1, p25
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567153