Ordering and Spin Waves in NaNiO2 : A Stacked Quantum Ferromagnet

M. J. Lewis; B. D. Gaulin; L. Filion; C. Kallin; A. J. Berlinsky; H. A. Dabkowska; Y. Qiu; J. R. D. Copley

doi:10.1103/PhysRevB.72.014408

Ordering and Spin Waves in NaNiO2 : A Stacked Quantum Ferromagnet

Strongly Correlated Electrons 2009-11-10 v2

Authors: M. J. Lewis , B. D. Gaulin , L. Filion , C. Kallin , A. J. Berlinsky , H. A. Dabkowska , Y. Qiu , J. R. D. Copley

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Abstract

Neutron scattering measurements on powder NaNiO2 reveal magnetic Bragg peaks and spin waves characteristic of strongly correlated s=1/2 magnetic moments arranged in ferromagnetic layers which are stacked antiferromagnetically. This structure lends itself to stacking sequence frustration in the presence of mixing between nickel and alkali metal sites, possibly providing a natural explanation for the enigmatic spin glass state of the isostructural compound, LiNiO2.

Keywords

frustrated magnetism spin excitations in condensed matter phase transitions

Cite

@article{arxiv.cond-mat/0409727,
  title  = {Ordering and Spin Waves in NaNiO2 : A Stacked Quantum Ferromagnet},
  author = {M. J. Lewis and B. D. Gaulin and L. Filion and C. Kallin and A. J. Berlinsky and H. A. Dabkowska and Y. Qiu and J. R. D. Copley},
  journal= {arXiv preprint arXiv:cond-mat/0409727},
  year   = {2009}
}

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6 pages, 5 figures, RevTex4, for higher resolution figures see published version

Ordering and Spin Waves in NaNiO2 : A Stacked Quantum Ferromagnet

Abstract

Keywords

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