Study of Low-energy States of Clusters of Spin-1/2 and Spin-1 Triangles with Kagome-like Geometries
| dc.creator | Rudra, Indranil | |
| dc.creator | Ramasesha, S. | |
| dc.creator | Sen, Diptiman | |
| dc.date | 2002-10-06 | |
| dc.date.accessioned | 2026-07-07T02:47:36Z | |
| dc.date.available | 2026-07-07T02:47:36Z | |
| dc.description | We study the low-energy properties of Heisenberg antiferromagnetic spin-1/2 and spin-1 systems on various clusters made up of triangles. Some of the clusters have a geometry similar to representative pieces of the Kagome lattice, while others have the geometry of a sawtooth chain. While the ground state always has the lowest possible spin (0 or 1/2), the nature of the low-energy excitations depends on the geometry and the site spin. For the Kagome clusters with spin-1 sites, the lowest excitations are gapped, with singlet and triplet excitations having similar gaps. This is in contrast to Kagome clusters with spin-1/2 sites where there are several low-energy singlet excitations (possibly gapless in the thermodynamic limit), while triplet excitations have a gap. For the sawtooth chain with spin-1 sites, the lowest excitations are triplets with a gap; the gap to singlet excitations is about twice the triplet gap. | |
| dc.description | Revtex, 16 pages, 9 ps figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0210122 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0210122 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20070 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Study of Low-energy States of Clusters of Spin-1/2 and Spin-1 Triangles with Kagome-like Geometries | |
| dc.type | text |