Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/38747
Título: | Novel anisotropic magnetoelectric effect on δ-FeO(OH)/P(VDF-TrFE) multiferroic composites |
Autor(es): | Martins, Pedro Libânio Abreu Larrea, A. Gonçalves, R. Botelho, Gabriela Ramana, E. V. Mendiratta, S. K. Sebastian, V. Lanceros-Méndez, S. |
Palavras-chave: | Magnetoelectrics Anisotropic Polymer-based Sensors Multiferroic magnetoelectircs |
Data: | 2015 |
Editora: | American Chemical Society |
Revista: | ACS Applied Materials and Interfaces |
Citação: | Martins, P., Larrea, A., Gonçalves, R., Botelho, G., Ramana, E. V., Mendiratta, S. K., . . . Lanceros-Mendez, S. (2015). Novel anisotropic magnetoelectric effect on δ-FeO(OH)/P(VDF-TrFE) multiferroic composites. ACS Applied Materials and Interfaces, 7(21), 11224-11229. doi: 10.1021/acsami.5b01196 |
Resumo(s): | The last decade has witnessed an increased research effort on multi-phase magnetoelectric (ME) composites. In this scope, this paper presents the application of novel materials for the development of anisotropic magnetoelectric (ME) sensors based on δ-FeO(OH)/P(VDF-TrFE) composites. The composite is able to precisely determine the amplitude and direction of the magnetic field. A new ME effect is reported in this study, as it emerges from the magnetic rotation of the δ-FeO(OH) nanosheets inside the piezoelectric P(VDF-TrFE) polymer matrix. δ-FeO(OH)/P(VDF-TrFE) composites with 1, 5, 10 and 20 δ-FeO(OH) filler weigh percentage in three δ-FeO(OH) alignment states (random, transversal and longitudinal) have been developed. Results shown that the modulus of the piezoelectric response (10-24 pC.N-1) is stable at least up to three months, the shape and magnetization maximum value (3 emu.g-1) is dependent on δ-FeO(OH) content and the obtained ME voltage coefficient, with a maximum of ≈0.4 mV.cm-1.Oe-1, is dependent on the incident magnetic field direction and intensity. In this way, the produced materials are suitable for innovative anisotropic sensor and actuator applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/38747 |
DOI: | 10.1021/acsami.5b01196 |
ISSN: | 1944-8244 1944-8252 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Martins_2015.pdf Acesso restrito! | 996,94 kB | Adobe PDF | Ver/Abrir |