Multiband magnetism and superconductivity in Fe-based compounds
| dc.creator | Cvetkovic, Vladimir | |
| dc.creator | Tesanovic, Zlatko | |
| dc.date | 2008-04-29 | |
| dc.date | 2009-02-16 | |
| dc.date.accessioned | 2026-07-07T12:41:48Z | |
| dc.date.available | 2026-07-07T12:41:48Z | |
| dc.description | Recent discovery of high T_c superconductivity in Fe-based compounds may have opened a new pathway to the room temperature superconductivity. The new materials feature FeAs layers instead of the signature CuO_2 planes of much-studied cuprates. A model Hamiltonian describing FeAs layers is introduced, highlighting the crucial role of puckering of As atoms in promoting d-electron itinerancy and warding off large local-moment magnetism of Fe ions, the main enemy of superconductivity. Quantum many-particle effects in charge, spin and multiband channels are explored and a nesting-induced spin density-wave order is found in the parent compund. We argue that this largely itinerant antiferromagnetism and high T_c itself are essentially tied to the multiband nature of the Fermi surface. | |
| dc.description | 7 pages, 4 figures; typos corrected, updated Fig. 4, Fig. 1c added | |
| dc.identifier | https://arxiv.org/abs/0804.4678 | |
| dc.identifier | http://arxiv.org/abs/0804.4678 | |
| dc.identifier | Europhysics Letters 85, 37002 (2009) | |
| dc.identifier | doi:10.1209/0295-5075/85/37002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/219863 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Multiband magnetism and superconductivity in Fe-based compounds | |
| dc.type | text |