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

doi:10.1103/PhysRevLett.93.177402

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

School of Arts and Sciences, Physics & Astronomy

Research output: Contribution to journal › Article

285 Scopus citations

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 language	English (US)
Pages (from-to)	177402-1-177402-4
Journal	Physical review letters
Volume	93
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.93.177402
State	Published - Oct 2 2004

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.93.177402

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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

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AU - Hur, N.

AU - Radaelli, P. O.

AU - Cheong, Sang-Wook

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