| Issue |
Europhys. Lett.
Volume 76, Number 1, October 2006
|
|
|---|---|---|
| Page(s) | 128 - 134 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10227-1 | |
| Published online | 30 August 2006 | |
Interplay between incommensurate phases in the cuprates
1
Marian Smoluchowski Institute of Physics, Jagellonian University ul. Reymonta 4, PL-30059 Kraków, Poland
2
Laboratoire CRISMAT, UMR CNRS-ENSICAEN(ISMRA) 6508 6 Bld. du Maréchal Juin, F-14050 Caen, France
3
Max-Planck-Institut für Festkörperforschung Heisenbergstrasse 1, D-70569 Stuttgart, Germany
Received:
25
May
2006
Accepted:
4
August
2006
We establish the qualitative behavior of the incommensurability
ϵ, optimal domain wall filling ν and chemical potential
μ for increasing doping by a systematic slave-boson study of an
array of vertical stripes separated by up to 
lattice constants.
Our findings obtained in the Hubbard model with the next-nearest
neighbor hopping 
agree qualitatively with the experimental
data for the cuprates in the doping regime 
.
It is found that t' modifies the optimal filling ν and thus
triggers the crossover to the diagonal (1,1) spiral phase at increasing
doping, stabilized already at 
for 
.
PACS: 74.72.-h – Cuprate superconductors (high-Tc and insulating parent compounds) / 71.45.Lr – Charge-density-wave systems / 71.10.Fd – Lattice fermion models (Hubbard model, etc.)
© EDP Sciences, 2006
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