Neutron diffraction study of TbMnO3: Magnetic structure revisited

R. Kajimoto; H. Yoshizawa; H. Shintani; T. Kimura; Y. Tokura

doi:10.1103/PhysRevB.70.012401

Neutron diffraction study of TbMnO3: Magnetic structure revisited

Strongly Correlated Electrons 2007-05-23 v1

Authors: R. Kajimoto , H. Yoshizawa , H. Shintani , T. Kimura , Y. Tokura

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Abstract

Magnetic ordering in TbMnO3 was revisited by a neutron diffraction study. In addition to the previously reported A-type and G-type modulated structures with a propagation vector (0,q_Mn,0), we found C-type and F-type orderings of the Mn moments. All the components appear below T_N^Mn = 46 K, and the G, C,and F-type components are enhanced below T_lock = 28 K, where q_Mn ordering locks at its low temperature value. The locking of the propagation vector also yields the squaring up of the spin arrangement. The magnetic moments of Tb ions show a quasi long-range ordering below T_N^Tb = 7 K. It drastically promotes the development of the G, C, and F-type components while suppressing the A-type components.

Keywords

neutron diffraction magnetic structure TbMnO3 propagation vector spin arrangement

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@article{arxiv.cond-mat/0402439,
  title  = {Neutron diffraction study of TbMnO3: Magnetic structure revisited},
  author = {R. Kajimoto and H. Yoshizawa and H. Shintani and T. Kimura and Y. Tokura},
  journal= {arXiv preprint arXiv:cond-mat/0402439},
  year   = {2007}
}

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5 pages, 4 figures

Neutron diffraction study of TbMnO3: Magnetic structure revisited

Abstract

Keywords

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