Magnetic Vortices in High Temperature Superconductors
| dc.creator | Hedegard, Per | |
| dc.date | 2001-02-05 | |
| dc.date | 2001-02-06 | |
| dc.date.accessioned | 2026-07-25T21:47:46Z | |
| dc.description | It is suggested that modes, observed in recent neutron scattering experiments by Lake {\it et al.}, on La$_{2-x}$Sr$_x$CuO$_4$ in strong magnetic fields ($\approx$ 7 T), are due to the existence of antiferromagnetic moments associated with the cores of vortices generated by the field. These moments form one-dimensional chains along the $c$-axis (the vortex axis), which at finite temperatures are disordered. At temperatures higher than 10 K the correlation length gets shorter than the lattice parameter, resulting in no scattering from coherent spin-waves above that temperature. The bandwidth of the spin-waves is estimated to be $\approx$ 4 meV in accordance with the observations. | |
| dc.description | 3 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0102070 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0102070 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/82933 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Magnetic Vortices in High Temperature Superconductors | |
| dc.type | text |