Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-12-18
Phys. Rev. B 77, 094404 (2008)
Physics
Condensed Matter
Strongly Correlated Electrons
8 pages, 9 figures
Scientific paper
10.1103/PhysRevB.77.094404
By means of a numerical analysis using a non-Abelian symmetry realization of the density matrix renormalization group, we study the behavior of vector chirality correlations in isotropic frustrated chains of spin S=1 and S=1/2, subject to a strong external magnetic field. It is shown that the field induces a phase with spontaneously broken chiral symmetry, in line with earlier theoretical predictions. We present results on the field dependence of the order parameter and the critical exponents.
Kleine Adrian
Kolezhuk Alexei K.
Kube R.
Kurz Mark
McCulloch Ian P.
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