Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-11-15
Phys. Rev. Lett. 96, 117205 (2006)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.96.117205
We investigate a simple model of a frustrated spin-1/2 Heisenberg chain coupled to adiabatic phonons under an external magnetic field. Using field theoretic methods complemented by extensive Density Matrix Renormalisation Group techniques generalized to include self-consistent lattice distortions, we show that magnetization plateaux at non-trivial rational values of the magnetization can be stabilized by the lattice coupling. We suggest that such a scenario could be relevant for some low dimensional frustrated spin-Peierls compounds.
Cabra Daniel C.
Dobry Ariel
Gazza Claudio
Poilblanc Didier
Vekua Temo
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