Field-induced spin-density-wave phases in TMTSF organic conductors: quantization versus non-quantization
| dc.creator | Sengupta, K. | |
| dc.creator | Dupuis, N. | |
| dc.date | 2003-02-07 | |
| dc.date.accessioned | 2026-07-07T06:21:46Z | |
| dc.date.available | 2026-07-07T06:21:46Z | |
| dc.description | We study the magnetic-field-induced spin-density-wave (FISDW) phases in TMTSF organic conductors in the framework of the quantized nesting model. In agreement with recent suggestions, we find that the SDW wave-vector ${\bf Q}$ deviates from its quantized value near the transition temperature $T_c$ for all phases with quantum numbers $N>0$. Deviations from quantization are more pronounced at low pressure and higher $N$ and may lead to a suppression of the first-order transitions $N+1\to N$ for $N\ge 5$. Below a critical pressure, we find that the N=0 phase invades the entire phase diagram in accordance with earlier experiments. We also show that at T=0, the quantization of ${\bf Q}$ and hence the Hall conductance is always exact. Our results suggest a novel phase transition/crossover at intermediate temperatures between phases with quantized and non-quantized ${\bf Q}$. | |
| dc.description | 4 pages, 4 figures, Revtex | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0302142 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0302142 | |
| dc.identifier | Phys. Rev. B 68, 094431 (2003) | |
| dc.identifier | doi:10.1103/PhysRevB.68.094431 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/95706 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Field-induced spin-density-wave phases in TMTSF organic conductors: quantization versus non-quantization | |
| dc.type | text |