Bond-centered, bond-ordered stripes in doped antiferromagnets
| dc.creator | Wrobel, P. | |
| dc.creator | Maciag, A. | |
| dc.creator | Eder, R. | |
| dc.date | 2004-08-26 | |
| dc.date | 2004-12-03 | |
| dc.date.accessioned | 2026-07-07T02:59:57Z | |
| dc.date.available | 2026-07-07T02:59:57Z | |
| dc.description | Motivated by recent inelastic neutron scattering experiments on cuprates, we discuss the formation of bond order in the stripe phase. We suggest that the spin Peierls order emerges in hole-rich domain walls (DWs) formed between hole-poor regions in which long-range antiferromagnetic (AF) correlations exist. On the example of a single stripe we analyze the stability of such structures. The motion of a hole inside the DW which takes the form of a bond ordered ladder is in principle unrestricted. The hole hopping in domains is to some extent obscured by the fact that a moving hole spoils AF correlations. The propagation of a hole along the stripe which takes the form of the ladder-like domain wall that separates antiphase AF domains is a combination of these two types of motion occurring in two different environments. By analyzing the energy dispersion of a quasiparticle propagating along the bond-centered, bond-ordered stripe and of a quasiparticle propagating along the site-centered stripe we deduce that bond ordered stripes are stable at the total doping level 1/8 and the linear stripe-filling level 1/2. This conclusion seems to be relevant to the nature of the stripe phase in La_1.875 Ba_0.125 Cu O_4. | |
| dc.description | 18 pages, 9 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0408578 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0408578 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24716 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Bond-centered, bond-ordered stripes in doped antiferromagnets | |
| dc.type | text |