Disordered ground states in a quantum frustrated spin chain with side chains
| dc.creator | Takano, Ken'ichi | |
| dc.creator | Hida, Kazuo | |
| dc.date | 2007-10-18 | |
| dc.date | 2008-08-23 | |
| dc.date.accessioned | 2026-07-07T09:57:44Z | |
| dc.date.available | 2026-07-07T09:57:44Z | |
| dc.description | We study a frustrated mixed spin chain with side chains, where the spin species and the exchange interactions are spatially varied. A nonlinear sigma model method is formulated for this model, and a phase diagram with two disordered spin-gap phases is obtained for typical cases. Among them we examine the case with a main chain consisting of an alternating array of spin-1 and spin-1/2 sites and side chains each of a single spin-1/2 site in great detail. Based on numerical, perturbational, and variational approaches, we propose a singlet cluster solid picture for each phase, where the ground state is expressed as a tensor product of local singlet states. | |
| dc.description | 12 pages, 13 figures (included) | |
| dc.identifier | https://arxiv.org/abs/0710.3457 | |
| dc.identifier | http://arxiv.org/abs/0710.3457 | |
| dc.identifier | Phys. Rev. B 77, 134412 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.77.134412 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/167455 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Statistical Mechanics | |
| dc.title | Disordered ground states in a quantum frustrated spin chain with side chains | |
| dc.type | text |