Determination of the magnetostrictive response of nanoparticles via magnetoelectric measurements

Martins, P.; Silva, Marco Aurélio Pinto; Lanceros‐Méndez, S.

doi:10.1039/c5nr01397f

Cited by 48 publications

(52 citation statements)

References 52 publications

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“…T and H the stress and applied magnetic field, respectively; ξ the magnetic permeability and M the magnetization) the ME voltage coefficient, α33, in these composites can be further increased by increasing filler content, ϕ, dielectric constant of the composite, ε, or by suitably modifying the elastic modulus [48][49][50] . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Magnetostrictive ZMFO (9 nm), CFO ( …”

Section: Resultsmentioning

confidence: 99%

Tailored Magnetic and Magnetoelectric Responses of Polymer-Based Composites

Martins

Kolen’ko

Rivas

et al. 2015

ACS Appl. Mater. Interfaces

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124

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The manipulation of electric ordering with applied magnetic fields has been realized on magnetoelectric (ME) materials; however, their ME switching is often accompanied by significant hysteresis and coercivity that represents for some applications a severe weakness. To overcome this obstacle, this work focuses on the development of a new type of ME polymer nanocomposites that exhibits a tailored ME response at room temperature. The multiferroic nanocomposites are based on three different ferrite nanoparticles, Zn0.2Mn0.8Fe2O4 (ZMFO), CoFe2O4 (CFO) and Fe3O4 (FO), dispersed in a piezoelectric copolymer poly(vinylindene fluoride-trifluoroethylene) (P(VDF-TrFE)) matrix. No substantial differences were detected in the time-stable piezoelectric response of the composites (∼-28 pC·N(1-)) with distinct ferrite fillers and for the same ferrite content of 10 wt %. Magnetic hysteresis loops from pure ferrite nanopowders showed different magnetic responses. ME results of the nanocomposite films with 10 wt % ferrite content revealed that the ME induced voltage increases with increasing dc magnetic field until a maximum of 6.5 mV·cm(-1)·Oe(1-), at an optimum magnetic field of 0.26 T, and 0.8 mV·cm(-1)·Oe(1-), at an optimum magnetic field of 0.15 T, for the CFO/P(VDF-TrFE) and FO/P(VDF-TrFE) composites, respectively. In contrast, the ME response of ZMFO/P(VDF-TrFE) exposed no hysteresis and high dependence on the ZMFO filler content. Possible innovative applications such as memories and information storage, signal processing, and ME sensors and oscillators have been addressed for such ferrite/PVDF nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Tailored Magnetic and Magnetoelectric Responses of Polymer-Based Composites

Martins

Kolen’ko

Rivas

et al. 2015

ACS Appl. Mater. Interfaces

Self Cite

124

View full text Add to dashboard Cite

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“…Particularly, magnetic NPs are of large interest, having successfully demonstrated their utility in a widespread range of applications, namely magnetic fluids, magnetic energy storage, catalysis, environmental remediation, magnetic inks, and magnetic resonance imaging (MRI) ( Figure ) …”

Section: Introductionmentioning

confidence: 99%

Advances in Magnetic Nanoparticles for Biomedical Applications

Cardoso

Francesko

Ribeiro

et al. 2017

Adv Healthcare Materials

535

361

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Magnetic nanoparticles (NPs) are emerging as an important class of biomedical functional nanomaterials in areas such as hyperthermia, drug release, tissue engineering, theranostic, and lab-on-a-chip, due to their exclusive chemical and physical properties. Although some works can be found reviewing the main application of magnetic NPs in the area of biomedical engineering, recent and intense progress on magnetic nanoparticle research, from synthesis to surface functionalization strategies, demands for a work that includes, summarizes, and debates current directions and ongoing advancements in this research field. Thus, the present work addresses the structure, synthesis, properties, and the incorporation of magnetic NPs in nanocomposites, highlighting the most relevant effects of the synthesis on the magnetic and structural properties of the magnetic NPs and how these effects limit their utilization in the biomedical area. Furthermore, this review next focuses on the application of magnetic NPs on the biomedical field. Finally, a discussion of the main challenges and an outlook of the future developments in the use of magnetic NPs for advanced biomedical applications are critically provided.

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“…It may not essentially explain the magnetoelectric effects from a physical aspect in the particulate composites, the thin films and other ME composites. However, if we regard the interface coupling factor as a rectify coefficient, it may also explain the discrepancy between the theoretical and experimental results for these composites mentioned above [20,21]. …”

Section: Discussionmentioning

confidence: 99%

“…The definition of coupling coefficient between the phases proposed by Bichurin was also applied in his theory of ME effect for heterogeneous composites. Martins et al defined a similar interface coupling factor for the polymer based composites and further proposed a ME coupling model for the particulate composites [19,20,21]. …”

Section: Introductionmentioning

confidence: 99%

Equivalent Circuit Model of Low-Frequency Magnetoelectric Effect in Disk-Type Terfenol-D/PZT Laminate Composites Considering a New Interface Coupling Factor

Lou

2017

Sensors

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This paper describes the modeling of magnetoelectric (ME) effects for disk-type Terfenol-D (Tb0.3Dy0.7Fe1.92)/PZT (Pb(Zr,Ti)O3) laminate composite at low frequency by combining the advantages of the static elastic model and the equivalent circuit model, aiming at providing a guidance for the design and fabrication of the sensors based on magnetoelectric laminate composite. Considering that the strains of the magnetostrictive and piezoelectric layers are not equal in actual operating due to the epoxy resin adhesive bonding condition, the magnetostrictive and piezoelectric layers were first modeled through the equation of motion separately, and then coupled together with a new interface coupling factor kc, which physically reflects the strain transfer between the phases. Furthermore, a theoretical expression containing kc for the transverse ME voltage coefficient αv and the optimum thickness ratio noptim to which the maximum ME voltage coefficient corresponds were derived from the modified equivalent circuit of ME laminate, where the interface coupling factor acted as an ideal transformer. To explore the influence of mechanical load on the interface coupling factor kc, two sets of weights, i.e., 100 g and 500 g, were placed on the top of the ME laminates with the same thickness ratio n in the sample fabrication. A total of 22 T-T mode disk-type ME laminate samples with different configurations were fabricated. The interface coupling factors determined from the measured αv and the DC bias magnetic field Hbias were 0.11 for 500 g pre-mechanical load and 0.08 for 100 g pre-mechanical load. Furthermore, the measured optimum thickness ratios were 0.61 for kc = 0.11 and 0.56 for kc = 0.08. Both the theoretical ME voltage coefficient αv and optimum thickness ratio noptim containing kc agreed well with the measured data, verifying the reasonability and correctness for the introduction of kc in the modified equivalent circuit model.

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Determination of the magnetostrictive response of nanoparticles via magnetoelectric measurements

Cited by 48 publications

References 52 publications

Tailored Magnetic and Magnetoelectric Responses of Polymer-Based Composites

Tailored Magnetic and Magnetoelectric Responses of Polymer-Based Composites

Advances in Magnetic Nanoparticles for Biomedical Applications

Equivalent Circuit Model of Low-Frequency Magnetoelectric Effect in Disk-Type Terfenol-D/PZT Laminate Composites Considering a New Interface Coupling Factor

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