Title: Field-controlled spin current in frustrated spin chains
Author(s):

	A.K. Kolezhuk (Institut für Theoretische Physik C, RWTH Aachen University, 52056 Aachen, Germany; Institute of Magnetism, National Academy of Sciences and Ministry of Education, 03142 Kyiv, Ukraine) ,
	I.P. McCulloch (Department of Physics, University of Queensland, Brisbane QLD 4072, Australia)

We study states with spontaneous spin current, emerging in frustrated antiferromagnetic spin-S chains subject to a strong external magnetic field. As a numerical tool, we use a non-Abelian symmetry realization of the density matrix renormalization group. The field dependence of the order parameter and the critical exponents are presented for zigzag chains with S=1/2, 1, 3/2, and 2.

Key words: vector chirality, zigzag chain, magnetic field
PACS: 75.10.Pq, 75.40.Cx, 75.40.Mg
Comments: Figs. 2, Refs. 30, Tabs. 0

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