Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5

L. C. Chapon, G. R. Blake, M. J. Gutmann, S. Park, N. Hur, P. O. Radaelli, Sang-Wook Cheong

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Abstract

The magnetostructural phase diagram of multiferroic TbMn2O 5 was investigated as a function of temperature and magnetic field by neutron diffraction. It was observed that dielectric and magnetic anomalies were associated with steps in the magnetic propagation vector, and in the structural parameters. The geometrically frustrated magnetic structure were found to be stabilized by "canted antiferroelectric" displacements of the Mn3+ ions. It was found that the Tb moments order ferromagnetically at low temperatures in an applied field, while the Mn magnetic structure is largely unchanged.

Original languageEnglish (US)
Pages (from-to)177402-1-177402-4
JournalPhysical review letters
Volume93
Issue number17
DOIs
StatePublished - Oct 2 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Chapon, L. C., Blake, G. R., Gutmann, M. J., Park, S., Hur, N., Radaelli, P. O., & Cheong, S-W. (2004). Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5. Physical review letters, 93(17), 177402-1-177402-4. https://doi.org/10.1103/PhysRevLett.93.177402