Magnetic and dielectric properties of multiferroic Tb 0.5 Eu 0.5 MnO 3

H. C. Hsu, C. D. Yang, W. Y. Tseng, H. C. Ku, Yung-Yuan Hsu

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Abstract

The structural, magnetic and dielectric properties of multiferroic compound Tb 0.5 Eu 0.5 MnO 3 are reported near the boundary of the multiferroic phase of the Eu-doped Tb 1-x Eu x MnO 3 system. The Mn 3+ moments order in an incommensurate antiferromagnetic manner below T N 50 K, followed by a spin canting-like response around 25 K. Below T N , extra hysteresis loops were observed for applied fields B a around 1-2 T, with decreasing magnetic / K moment for increasing magnetic fields. The dielectric constant ε' showed a peak at 28, which was attributed to the ferroelectric transition in analogy with the parent compound TbMnO 3 . Structural analysis indicates the Mn-O2-Mn bond angle within the ab-plane is 145.9° suggesting that there exists a critical angle in the perovskite manganate multiferroic systems.

Original languageEnglish
Article number012114
JournalJournal of Physics: Conference Series
Volume273
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

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dielectric properties
magnetic properties
moments
structural analysis
hysteresis
permittivity
magnetic fields

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  • Physics and Astronomy(all)

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Magnetic and dielectric properties of multiferroic Tb 0.5 Eu 0.5 MnO 3 . / Hsu, H. C.; Yang, C. D.; Tseng, W. Y.; Ku, H. C.; Hsu, Yung-Yuan.

In: Journal of Physics: Conference Series, Vol. 273, No. 1, 012114, 01.01.2011.

Research output: Contribution to journalArticle

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