Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-11-05
Physics
Condensed Matter
Strongly Correlated Electrons
REVTEX4 file, 3 color figures, 1 table
Scientific paper
10.1103/PhysRevB.72.104435
We find the classification of diagonal spin ladders depending on a characteristic integer $N_p$ in terms of ferrimagnetic, gapped and critical phases. We use the finite algorithm DMRG, non-linear sigma model and bosonization techniques to prove our results. We find stoichiometric contents in cuprate $CuO_2$ planes that allow for the existence of weakly interacting diagonal ladders.
Martin-Delgado Miguel Angel
Rodriguez-Laguna Javier
Sierra German
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