| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Room-Temperature Magnetism Realized by Doping Fe into Ferroelectric LiTaO3 |
| SONG Ying-Jie1,2, ZHANG Qing-Hua2, SHEN Xi2, NI Xiao-Dong1**, YAO Yuan2, YU Ri-Cheng2** |
1Department of Physics, University of Science and Technology Beijing, Beijing 100083
2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
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| Cite this article: |
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SONG Ying-Jie, ZHANG Qing-Hua, SHEN Xi et al 2014 Chin. Phys. Lett. 31 017501 |
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Abstract We synthesize LiTa1?xFexO3?σ (LTFO) ceramics by the conventional solid-state reaction method. The samples remain single phase up to x=0.09. The magnetic measurements show that the doping of Fe successfully realizes ferromagnetism of LTFO at room temperature. The dielectric measurements indicate that LTFO is ferroelectric, similarly to LiTaO3 (LTO), but its ferroelectric Curie temperature seems to decrease with the increasing Fe content. By means of doping Fe ions into LTO, the coexistence of spontaneous electric polarization and spontaneous magnetic moment is realized at room temperature.
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Received: 10 September 2013
Published: 28 January 2014
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| PACS: |
75.85.+t
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(Magnetoelectric effects, multiferroics)
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75.47.Lx
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(Magnetic oxides)
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76.50.+g
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(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
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31.15.es
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(Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies))
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