Half-filled stripes in the t-t'-U Hubbard model
| dc.creator | Raczkowski, M. | |
| dc.creator | Oles, A. M. | |
| dc.creator | Fresard, R. | |
| dc.date | 2005-11-04 | |
| dc.date.accessioned | 2026-07-07T06:45:51Z | |
| dc.date.available | 2026-07-07T06:45:51Z | |
| dc.description | Using a self-consistent Hartree-Fock approximation we investigate the relative stability of various stripe phases in the extended $t$-$t'$-$U$ Hubbard model. One finds that a negative ratio of next- to nearest-neighbor hopping $t'/t<0$ expells holes from antiferromagnetic domains and reinforces the stripe order. Therefore the half-filled stripes not only accommodate holes but also redistribute them so that the kinetic energy is gained, and these stripes take over in the regime of $t'/t\simeq -0.3$ appropriate for YBa$_2$Cu$_3$O$_{6+δ}$. | |
| dc.description | Accepted for publication in Phys. Stat. Sol | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0511100 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0511100 | |
| dc.identifier | phys. stat. sol. (b) 243, 128 (2006) | |
| dc.identifier | doi:10.1002/pssb.200562403 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/103159 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Half-filled stripes in the t-t'-U Hubbard model | |
| dc.type | text |