Comment on "Competition between helimagnetism and commensurate quantum spin correlations in LiCu2O2"

Details Comment on "Competition between helimagnetism and commensurate quantum spin correlations in LiCu2O2" Comment on "Competition between helimagnetism and commensurate quantum spin correlations in LiCu2O2"

2004-11-16

arxiv.org/abs/cond-mat/0411418v1

Phys. Rev. Lett. 94 039705 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

one page, one figure

Scientific paper

10.1103/PhysRevLett.94.039705

The microscopic origin of the recently observed helical structure in LiCu2O2 [1] is considered. It is shown that the frustrated antiferromagnetic double chain scenario adopted in Ref.1 is unrealistic. It should be replaced by a frustrated single-chain (CuO2) scenario proposed in Ref. 2 with ferromagnetic nearest neighbor and antiferromagnetic next nearest neighbor exchange integrals \. [1] T. Masuda et al. Phys. Rev. Lett. 92 (2004), 177201. [2] A. Gippius et al. Phys. Rev. B 70 (2004), R01426; cond-mat/0312576.

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