Effect of Gd3+ ion on the structural and magnetic properties of (Nb and Al) co-doped rutile TiO 2 single crystal (2020)
- Authors:
- USP affiliated authors: MACHADO, ANTONIO JEFFERSON DA SILVA - EEL ; OLIVEIRA, FELIPE SOUZA - EEL
- Unidade: EEL
- DOI: 10.1016/j.ceramint.2020.11.013
- Assunto: MAGNETISMO
- Keywords: Rutile TiO2; Single crystal; Bound magnetic polaron model (BMP); Room-temperature ferromagnetism
- Agências de fomento:
- Language: Inglês
- Abstract: In this study we investigated the influence of ions on the structural and magnetic properties of (Nb + Al) co-doped single crystals with nominal composition (TNA) and (TNAGd) grown in an optical traveling floating zone (TFZ) furnace. The crystal structure and phase purity investigated by X-ray diffraction (XRD) and High resolution transmission electron microscopy (HRTEM) images of selected area electron diffraction (SAED) patterns confirmed the rutile crystal nature for both TNA and TNAGd samples. The magnetic properties were studied from 3 to 400 K in magnetic fields up to 60 kOe. ZFC/FC curves revealed paramagnetic behavior for TNA sample, while the presence of ions in the crystal structure drastically affected the magnetic properties turning to ferromagnetic behavior. The isothermal magnetization, M(H) curves for TNAGd samples were analyzed by the bound magnetic polaron (BMP) model. At the lowest temperature the values of the total moment of BMP's ( ), spontaneous moment of a single BMP ( ), and the concentration of BMP's (N) were found to be , 840 , and , respectively. The number of ions per BMP was and 75% of ions were inside the BMP's and the remaining 25% were outside but diluted in the matrix or interacting antiferromagnetically.
- Imprenta:
- Source:
- Título: Ceramics International
- ISSN: 0272-8842
- Volume/Número/Paginação/Ano: v. 47, n. 5, p.6720-6727, 2020
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
PESSONI, H. V. S. et al. Effect of Gd3+ ion on the structural and magnetic properties of (Nb and Al) co-doped rutile TiO 2 single crystal. Ceramics International, v. 47, n. 5, p. 6720-6727, 2020Tradução . . Disponível em: https://doi.org/10.1016/j.ceramint.2020.11.013. Acesso em: 13 fev. 2026. -
APA
Pessoni, H. V. S., Oliveira, F. S., Faria, L. S. de, Machado, A. J. da S., & Franco Jr, A. (2020). Effect of Gd3+ ion on the structural and magnetic properties of (Nb and Al) co-doped rutile TiO 2 single crystal. Ceramics International, 47( 5), 6720-6727. doi:10.1016/j.ceramint.2020.11.013 -
NLM
Pessoni HVS, Oliveira FS, Faria LS de, Machado AJ da S, Franco Jr A. Effect of Gd3+ ion on the structural and magnetic properties of (Nb and Al) co-doped rutile TiO 2 single crystal [Internet]. Ceramics International. 2020 ; 47( 5): 6720-6727.[citado 2026 fev. 13 ] Available from: https://doi.org/10.1016/j.ceramint.2020.11.013 -
Vancouver
Pessoni HVS, Oliveira FS, Faria LS de, Machado AJ da S, Franco Jr A. Effect of Gd3+ ion on the structural and magnetic properties of (Nb and Al) co-doped rutile TiO 2 single crystal [Internet]. Ceramics International. 2020 ; 47( 5): 6720-6727.[citado 2026 fev. 13 ] Available from: https://doi.org/10.1016/j.ceramint.2020.11.013 - Structure and dielectric properties of
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Informações sobre o DOI: 10.1016/j.ceramint.2020.11.013 (Fonte: oaDOI API)
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