Suppression of Magnetic Frustration by Doping in a nearest-neighbour anti-ferromagnetic triangular lattice
| dc.creator | Sheshadri, K. | |
| dc.creator | Chainani, A. | |
| dc.date | 2005-09-15 | |
| dc.date | 2005-09-19 | |
| dc.date.accessioned | 2026-07-07T06:18:01Z | |
| dc.date.available | 2026-07-07T06:18:01Z | |
| dc.description | Based on experimental observations in A{x}MO{2} (A = Na, Li; M = Co, Ni), a model for suppression of magnetic frustration by electron doping in a nearest-neighbour antiferromagnetic triangular lattice is presented. It is found that frustration can be quantified, as determined by geometry and bond-counting, and its magnitude is a non-monotonic function of $x$. A mean-field calculation provides temperature-dependent magnetization, spin-entropy and heat capacity. Low-doping (x = 0.25, 0.33) results in a highly frustrated regime. A{0.5}MO{2} has strongest order and no frustration, while high doping (x = 0.67, 0.75) leads to low frustration and higher spin-entropy. The results agree with experiments including neutron scattering, spin entropy-driven thermoelectricity and ion ordering. | |
| dc.description | 11 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0509392 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0509392 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/94593 | |
| dc.subject | Materials Science | |
| dc.title | Suppression of Magnetic Frustration by Doping in a nearest-neighbour anti-ferromagnetic triangular lattice | |
| dc.type | text |