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Two-stage spin-flop transitions in the S = 1/2 antiferromagnetic spin chain BaCu(2)Si(2)O(7) | I Tsukada
; J Takeya
; T Masuda
; K Uchinokura
; | Date: |
17 Sep 2001 | Journal: | Phys Rev Lett, 87 (12), 127203 | Abstract: | Two-stage spin-flop transitions are observed in the quasi-one-dimensional antiferromagnet BaCu(2)Si(2)O(7). A magnetic field applied along the easy axis induces a spin-flop transition at 2.0 T followed by a second transition at 4.9 T. The magnetic susceptibility indicates the presence of Dzyaloshinskii-Moriya (DM) antisymmetric interactions between the intrachain neighboring spins. We discuss a possible mechanism whereby the geometrical competition between DM and interchain interactions, as discussed for the two-dimensional antiferromagnet La(2)CuO(4), causes the two-stage spin-flop transitions. | Source: | PubMed, pmid11580548 | Services: | Forum | Review | Favorites |
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