Low-energy Effective Theory for Spin Dynamics of Fluctuating Stripes
| dc.creator | Cheng, Chi-Ho | |
| dc.date | 2005-10-20 | |
| dc.date.accessioned | 2026-07-07T06:44:36Z | |
| dc.date.available | 2026-07-07T06:44:36Z | |
| dc.description | We derive an effective Hamiltonian for spin dynamics of fluctuating smectic stripes from the t-J model in the weak coupling limit t >> J. Besides the modulation of spin magnitude, the high energy hopping term would induce a low-energy anti-ferromagnetic interaction between two neighboring ``blocks of spins". Based on the effective Hamiltonian, we applied the linear spin-wave theory and found that the spin-wave velocity is almost isotropic for La_{2-x}Sr_x CuO_4 unless the structural effect is considered. The intensity of the second harmonic mode is found to be about 10% to that of the fundamental mode. | |
| dc.description | 4 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0510529 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0510529 | |
| dc.identifier | Physical Review B 72, 184516 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.72.184516 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/102826 | |
| dc.subject | Superconductivity | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Low-energy Effective Theory for Spin Dynamics of Fluctuating Stripes | |
| dc.type | text |