Heisenberg chains with alternating g-tensor and the Dzyaloshinskii–Moriya interaction

Abstract

Low-temperature ESR studies of copper pyrimidine dinitrate, a spin2 antiferromagnetic chain with alternating g-tensor and the Dzyaloshinskii–Moriya interaction, are presented. The ESR linewidth and g-factor shift are investigated as function of temperature. The data are interpreted in frame of a new theoretical concept proposed recently by Oshikawa and Affleck [Phys. Rev. Lett. 82 (1999) 5136] and applied for precise calculations of the ESR parameters in S 1⁄4 12 antiferromagnetic chains in the perturbative spinon regime. Excellent quantitative agreement between the theoretical predictions and experiment is obtained. r 2006 Elsevier B.V. All rights reserved. PACS: 75.40.Gb; 76.30. v

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@inproceedings{Zvyagin2007HeisenbergCW, title={Heisenberg chains with alternating g-tensor and the Dzyaloshinskii–Moriya interaction}, author={Sergei A Zvyagin and Jochen Wosnitza and Alexei K. Kolezhuk and Jerzy Krzystek and Ralf Feyerherm}, year={2007} }