Neutron scattering on HoB$_{12}$ - short-range correlations above T$_{N}$

K. Siemensmeyer; K. Flachbart; S. Gabani; S. Matas; Y. Paderno; N. Shitsevalova

Neutron scattering on HoB$_{12}$ - short-range correlations above T$_{N}$

Strongly Correlated Electrons 2007-05-23 v1 Other Condensed Matter

Authors: K. Siemensmeyer , K. Flachbart , S. Gabani , S. Matas , Y. Paderno , N. Shitsevalova

Abstract

Neutron scattering experiments on frustrated fcc - antiferromagnet HoB $_{12}$ have been performed above T $_{N}$ = 7.4 K. Diffuse scattering patterns indicate that above Neel temperature correlations between neighboring magnetic moments of Ho - ions appear, similar to the appearance of coupled spin-pairs (dimers) in low dimensional magnets. Moreover, the diffuse patterns show a symmetry reduction from fcc to simple cubic. Analogous behavior in 3D systems is not known, although it was predicted by theory. The role of various interactions leading to this behavior is being analyzed and discussed.

Keywords

neutron scattering HoB$_{12}$ frustrated antiferromagnet short-range correlations diffuse scattering symmetry reduction

Cite

@article{arxiv.cond-mat/0601039,
  title  = {Neutron scattering on HoB$_{12}$ - short-range correlations above T$_{N}$},
  author = {K. Siemensmeyer and K. Flachbart and S. Gabani and S. Matas and Y. Paderno and N. Shitsevalova},
  journal= {arXiv preprint arXiv:cond-mat/0601039},
  year   = {2007}
}

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3 pages, 3 figures

Neutron scattering on HoB$_{12}$ - short-range correlations above T$_{N}$

Abstract

Keywords

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