Three Dimensional Magnetic Correlations in Multiferroic LuFe2O4

A. D. Christianson; M. D. Lumsden; M. Angst; Z. Yamani; W. Tian; R. Jin; E. A. Payzant; S. E. Nagler; B. C. Sales; D. Mandrus

doi:10.1103/PhysRevLett.100.107601

Three Dimensional Magnetic Correlations in Multiferroic LuFe2O4

Strongly Correlated Electrons 2009-11-13 v4

Authors: A. D. Christianson , M. D. Lumsden , M. Angst , Z. Yamani , W. Tian , R. Jin , E. A. Payzant , S. E. Nagler , B. C. Sales , D. Mandrus

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Abstract

We present single-crystal neutron diffraction measurements on multiferroic LuFe2O4 showing phase transitions at 240 and 175 K. Magnetic reflections are observed below each transition indicating that the magnetic interactions in LuFe2O4 are 3-dimensional (3D) in character. The magnetic structure is refined as a ferrimagnetic spin configuration below the 240 K transition. While 3D magnetic correlations persists below 175 K, a significant broadening of the magnetic peaks is observed along with the build up of a diffuse component to the magnetic scattering.

Keywords

magnetic structure multiferroic spin excitations in condensed matter

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@article{arxiv.0711.3560,
  title  = {Three Dimensional Magnetic Correlations in Multiferroic LuFe2O4},
  author = {A. D. Christianson and M. D. Lumsden and M. Angst and Z. Yamani and W. Tian and R. Jin and E. A. Payzant and S. E. Nagler and B. C. Sales and D. Mandrus},
  journal= {arXiv preprint arXiv:0711.3560},
  year   = {2009}
}

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Three Dimensional Magnetic Correlations in Multiferroic LuFe2O4

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