Electron-Phonon Driven Spin Frustration in Multi-Band Hubbard Models: MX Chains and Oxide Superconductors
| dc.creator | Gammel, J. Tinka | |
| dc.creator | Saxena, K. Yonemitsu A. | |
| dc.creator | Bishop, A. R. | |
| dc.creator | Röder, H. | |
| dc.date | 1992-09-19 | |
| dc.date.accessioned | 2026-07-07T03:06:44Z | |
| dc.date.available | 2026-07-07T03:06:44Z | |
| dc.description | We discuss the consequences of both electron-phonon and electron-electron couplings in 1D and 2D multi-band (Peierls-Hubbard) models. After briefly discussing various analytic limits, we focus on (Hartree-Fock and exact) numerical studies in the intermediate regime for both couplings, where unusual spin-Peierls as well as long-period, frustrated ground states are found. Doping into such phases or near the phase boundaries can lead to further interesting phenomena such as separation of spin and charge, a dopant-induced phase transition of the global (parent) phase, or real-space (``bipolaronic'') pairing. We discuss possible experimentally observable consequences of this rich phase diagram for halogen-bridged, transition metal, linear chain complexes (MX chains) in 1D and the oxide superconductors in 2D. | |
| dc.description | 6 pages, four postscript figures (appended), in regular TeX | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9209027 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9209027 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26918 | |
| dc.subject | Condensed Matter | |
| dc.title | Electron-Phonon Driven Spin Frustration in Multi-Band Hubbard Models: MX Chains and Oxide Superconductors | |
| dc.type | text |