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  Fe4-xNixNb2O9 (x ≤ 1): Nickel impact on the magnetoelectric properties of Fe4Nb2O9

Maignan, A., Jiongo-Dongmo, J.-N., Martin, C., Lebedev, O., Damay, F., Wang, X., et al. (2022). Fe4-xNixNb2O9 (x ≤ 1): Nickel impact on the magnetoelectric properties of Fe4Nb2O9. Solid State Sciences, 125: 106821, pp. 1-6. doi:10.1016/j.solidstatesciences.2022.106821.

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 Creators:
Maignan, A.1, Author
Jiongo-Dongmo, J.-N.1, Author
Martin, C.1, Author
Lebedev, O.I.1, Author
Damay, F.1, Author
Wang, Xiao2, Author              
Kuo, Chang-Yang2, Author              
Chang, Chun-Fu3, Author              
Hu, Zhiwei4, Author              
Tjeng, Liu Hao5, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Chun-Fu Chang, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863447              
4Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
5Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              

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Free keywords: Absorption spectroscopy, High resolution transmission electron microscopy, Magnetometers, Magnetometry, Nickel, Niobium compounds, Antiferromagnetic transition temperature, Atomic distribution, Divalents, High-resolution transmission electron microscopy, Ionic radius, Magnetoelectric properties, Oxidation state, Transition-metal oxides, Unit-cell volume, X-ray techniques, Antiferromagnetism, Antiferromagnetism, Magnetoelectric effect, Transition-metal oxides
 Abstract: We report the investigation of the Ni for Fe substitution in Fe4Nb2O9 by X-ray techniques (diffraction and absorption spectroscopy), transmission electron microscopy (TEM), magnetometry and magneto (di)electric measurements. Up to x = 1 in Fe4-xNixNb2O9, the structure remains trigonal, with a unit cell volume which decreases by −1.4% from x = 0 to 1, in accordance with the difference in the ionic radius of divalent iron and nickel whose oxidation states were obtained by XAS. Furthermore, EDX analyses and high resolution TEM confirm the homogeneous atomic distribution. The antiferromagnetic transition temperature TN = 75 K of Fe3NiNb2O9 (x = 1) is 18 K lower than that of Fe4Nb2O9. The magnetic field (H) dependence of the magnetization (M) of Fe3NiNb2O9 below TN exhibits a spin-flop like at about 1T, and a more ferromagnetic-like M(H) behaviour than that of Fe4Nb2O9. Similarly, below TN, the H-dependent electric polarization (P) for the x = 0.5 and 1 samples is steeper than the P(H) curve of the x = 0 compound. This points towards the key role of such chemical substitutions to induce larger magnetoelectric coefficient. © 2022 Elsevier Masson SAS

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Language(s): eng - English
 Dates: 2022-01-182022-01-18
 Publication Status: Published in print
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Title: Solid State Sciences
  Abbreviation : Solid State Sci.
Source Genre: Journal
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Publ. Info: Paris : Elsevier Masson SAS
Pages: - Volume / Issue: 125 Sequence Number: 106821 Start / End Page: 1 - 6 Identifier: ISSN: 1293-2558
CoNE: https://pure.mpg.de/cone/journals/resource/954926245540