Spin texture in weakly doped $Cu0_2$ planes explaining magnetic correlation length and Raman scattering experiments
| dc.creator | Gooding, R. J. | |
| dc.creator | Mailhot, A. | |
| dc.date | 1992-09-08 | |
| dc.date.accessioned | 2026-07-07T03:06:43Z | |
| dc.date.available | 2026-07-07T03:06:43Z | |
| dc.description | A model of $CuO_2$ planes weakly doped with partially delocalised holes is considered. The effect of such a hole on the background AFM spin texture can be represented by a purely magnetic Hamiltonian $H = - \sum_{(ijk)} (\vec S_i \cdot \vec S_j \times \vec S_k)^2$, where the summation is over the four triangles of a single plaquette. We show that this model of randomly distributed chiral spin defects leads to an in--plane spin correlation length approximately described by $ξ^{-1} (x,T) = ξ^{-1} (0,T) + ξ^{-1} (x,0)$, consistent with neutron scattering experiments on $La_{2-x}Sr_xCuO_4$. Further, this model leads to favourable comparisons with $B_{1g}$ Raman scattering results for the same cuprate system. | |
| dc.description | 14 pages, 1 figure available on request from bob@rjg.phy.queensu.ca | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9209007 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9209007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26913 | |
| dc.subject | Condensed Matter | |
| dc.title | Spin texture in weakly doped $Cu0_2$ planes explaining magnetic correlation length and Raman scattering experiments | |
| dc.type | text |