Possibility of field-induced incommensurate order in quasi-one-dimensional frustrated spin system
نویسنده
چکیده
We study an incommensurate long-range order induced by an external magnetic field in a quasi-one-dimensional bond-alternating spin system, F5PNN, focusing on the role of the frustrating interaction which can be enhanced by a high-pressure effect. On the basis of the density matrix renormalization group analysis of a microscopic model for F5PNN, we present several H-T phase diagrams for typical parameters of the frustrating next-nearest-neighbour coupling and the interchain interaction, and then discuss how the field-induced incommensurate order develops by the frustration effect in such phase diagrams. A magnetization plateau at half the saturation moment is also mentioned. PACS numbers: 75.10.Jm, 75.40.Cx, 75.50.Ee Submitted to: J. Phys.: Condens. Matter Possibility of field-induced IC order in quasi-1D frustrated spin system 2
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