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Martins P, Larrea A, Gonçalves R, et al. Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites. ACS Appl Mater Interfaces. 2015;7(21):11224-9doi: 10.1021/acsami.5b01196.
Martins, P., Larrea, A., Gonçalves, R., Botelho, G., Ramana, E. V., Mendiratta, S. K., Sebastian, V., & Lanceros-Mendez, S. (2015). Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites. ACS applied materials & interfaces, 7(21), 11224-9. https://doi.org/10.1021/acsami.5b01196
Martins, P, et al. "Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites." ACS applied materials & interfaces vol. 7,21 (2015): 11224-9. doi: https://doi.org/10.1021/acsami.5b01196
Martins P, Larrea A, Gonçalves R, Botelho G, Ramana EV, Mendiratta SK, Sebastian V, Lanceros-Mendez S. Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites. ACS Appl Mater Interfaces. 2015 Jun 03;7(21):11224-9. doi: 10.1021/acsami.5b01196. Epub 2015 May 19. PMID: 25950199.
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ACS Appl Mater Interfaces. 2015 Jun 03;7(21):11224-9. doi: 10.1021/acsami.5b01196. Epub 2015 May 19.

Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites.

ACS applied materials & interfaces

P Martins, A Larrea, R Gonçalves, G Botelho, E V Ramana, S K Mendiratta, V Sebastian, S Lanceros-Mendez

Affiliations

  1. †Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal.
  2. ‡Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain.
  3. §Centro/Departamento de Química, Universidade do Minho, 4710-057 Braga, Portugal.
  4. ?Departamento de Física, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
  5. ?CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain.

PMID: 25950199 DOI: 10.1021/acsami.5b01196

Abstract

The past decade has witnessed increased research effort on multiphase magnetoelectric (ME) composites. In this scope, this paper presents the application of novel materials for the development of anisotropic magnetoelectric 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 weight percentage in three δ-FeO(OH) alignment states (random, transversal, and longitudinal) have been developed. Results have 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.

Keywords: anisotropic; magnetoelectrics; multiferroic; polymer-based; sensors

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