Field-controlled spin current in frustrated spin chains

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 a...

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Bibliographic Details
Published in:Condensed matter physics 2009, Vol.12 (3), p.429-434
Main Authors: Kolezhuk, McCulloch
Format: Article
Language:English
Subjects:
magnetic field
vector chirality
zigzag chain
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Summary: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.
ISSN:1607-324X
DOI:10.5488/CMP.12.3.429