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Phys. Rev. B 70, 012401 (2004) [4 pages]

Magnetic structure of TbMnO3 by neutron diffraction

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R. Kajimoto*
Neutron Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

H. Yoshizawa
Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, Tokai, Ibaraki 319-1106, Japan

H. Shintani, T. Kimura†, and Y. Tokura
Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan

See Also: Erratum

Received 17 February 2004; published 2 July 2004

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,qMn,0), we found C-type and F-type orderings of the Mn moments. All the components appear below TNMn=46 K, and the G-, C-, and F-type components are enhanced below Tlock=28 K, where qMn 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 TNTb=7 K. It drastically promotes the development of the G-, C-, and F-type components while suppressing the A-type components.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.70.012401
DOI:
10.1103/PhysRevB.70.012401
PACS:
75.47.Lx, 75.25.+z

*Present address: Neutron Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan.

†Present address: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

See Also

Erratum: R. Kajimoto, H. Yoshizawa, H. Shintani, T. Kimura, and Y. Tokura, Erratum: Magnetic structure of TbMnO3 by neutron diffraction [Phys. Rev. B 70, 012401 (2004)], Phys. Rev. B 70, 219904 (2004).

 
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