Quantum Charge Liquid - a new metallic state in 2 dimensions ? Application to Na$_{0.7}$CoO$_2$ family
| dc.creator | Baskaran, G. | |
| dc.date | 2003-10-10 | |
| dc.date | 2003-10-31 | |
| dc.date.accessioned | 2026-07-07T02:54:07Z | |
| dc.date.available | 2026-07-07T02:54:07Z | |
| dc.description | `Quantum Charge Liquid'(QCL), a new phase, is proposed to describe anomalous metallic properties (T < 100 K)of a density 'y' of doped holes with strong coulomb repulsions, in a band insulator NaCoO$_2$ with N sites. This phase, a quantum melted charge order, is characterized by a `charge only' fermi-sea (cFS) of yN charges and a `soft spin-liquid' of yN spin-\half moments forming an `effective lattice' of Heisenberg antiferromagnet. An approximate microscopic theory and some consequences are outlined. Anomalous `Fermi surfaces' seen in ARPES of \ncob and \n7cob matches well with our cFS, rather than a corresponding single band free electron FS. | |
| dc.description | 4 pages of LaTeX, 2 figure EPS files, one PS file | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0310241 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0310241 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22419 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Quantum Charge Liquid - a new metallic state in 2 dimensions ? Application to Na$_{0.7}$CoO$_2$ family | |
| dc.type | text |