The lock-in technique for studying magnetoelectric effect

Duong, Giap V.; Groessinger, R.; Schoenhart, M.; Bueno-Basques, D.

doi:10.1016/j.jmmm.2007.03.185

Cited by 169 publications

(93 citation statements)

References 9 publications

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“…All the magnetoelectric measurements were performed using the dynamic lock-in method described in detail in [16]. The essence of this method is to measure AC voltage V out induced between surfaces of the sample as a result of applying a small AC magnetic eld (H AC H DC ).…”

Section: Methodsmentioning

confidence: 99%

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics

et al. 2015

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Bi5Ti3FeO15 ceramics belongs to multiferroic class of materials. In this work it was prepared by solidstate sintering method and investigated by X-ray diraction, Mössbauer spectroscopy, and magnetoelectric effect measurements. As it was proved by X-ray diraction studies the single-phase Bi5Ti3FeO15 compound was obtained. The Mössbauer investigations revealed paramagnetic character of the compound at room temperature as well as at 80 K. Magnetoelectric measurements were carried out at room temperature using lock-in dynamic method and they proved presence of magnetoelectric coupling in this material. Additional magnetoelectric studies were carried out after subsequent electric poling of the sample. It was found that the maximum value of the coupling coecient was almost twice bigger than in the case without the initial poling and reached a value of αME ≈ 20.7 mV cm.

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Section: Methodsmentioning

confidence: 99%

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics

et al. 2015

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“…The direction of the applied magnetic field was parallel to the layers. The magnetoelectric effect was evaluated at room temperature by dynamic lock-in method, which has been described previously in the literature [12]. The induced voltage between sample surfaces was measured with a lock-in amplifier (Stanford Research System, model SR 830) with input resistance of 100 MΩ and a capacitance of 25 pF.…”

Section: Methodsmentioning

confidence: 99%

The Magnetoelectric Effect of a Ni0.3Zn0.62Cu0.08Fe2O4 - PbFe0.5Nb0.5O3 Multilayer Composite

Guzdek¹,

Sikora²,

Góra³

et al. 2014

Archives of Metallurgy and Materials

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The magnetoelectric effect in multiferroic materials has been widely studied for its fundamental interest and practical applications. The magnetoelectric effect observed for single phase materials like Cr 2 O 3 , BiFeO 3 , and Pb(Fe 0.5 Nb 0.5 )O 3 is usually small. A much larger effect can be obtained in composites consisting of magnetostrictive and piezoelectric phases. This paper investigates the magnetoelectric effect of a multilayer (laminated) structure consisting of 6 nickel ferrite and 7 PFN relaxor layers. It describes the synthesis and tape casting process for Ni 0.3 Zn 0.62 Cu 0.08 Fe 2 O 4 ferrite and relaxor PbFe 0.5 Nb 0.5 O 3 (PFN). Magnetic hysteresis, ZFC -FC curves and dependencies of magnetization versus temperature for PFN relaxor and magnetoelectric composite were measured with a vibrating sample magnetometer (VSM) in an applied magnetic field up to 85 kOe at a temperature range of 10-400 K. Magnetoelectric effect at room temperature was investigated as a function of a static magnetic field (0.3-6.5 kOe) and the frequency of sinusoidal magnetic field (0.01-6.5 kHz). At lower magnetic field, the magnetoelectric coefficient increases slightly before reaching a maximum and then decreases. The magnetoelectric coefficient α ME increases continuously as the frequency is raised, although this increase is less pronounced in the 1-6.5 kHz range. Maximum values of the magnetoelectric coefficient attained for the layered composites exceed about 50 mV/(Oe cm).Keywords: Tape casting, Multilayer composite, Magnetic properties, Magnetoelectric effect Materiały kompozytowe wykazujące efekt magnetoelektryczny są obecnie szeroko badane zarówno dla celów poznawczych jak i aplikacyjnych. Szczególny nacisk kładzie się na kompozyty ferrytowo -relaksorowe, w których efekt magnetoelektryczny jest znacznie większy niż w materiałach jednofazowych. W opracowaniu przedstawiono technologię wytwarzania wielowarstwowego kompozytu ceramicznego składającego się z magnetycznych warstw ferrytu Ni 0.3 Zn 0.62 Cu 0.08 Fe 2 O 4 rozdzielonych warstwami ferroelektryka PbFe 0.5 Nb 0.5 O 3 . Przedstawiono wyniki badań właściwości magnetycznych otrzymanego kompozytu. Badania te przeprowadzono przy użyciu magnetometru wibracyjnego w szerokim zakresie temperatur (10K-400K) w polu magnetycznym dochodzącym do 85 kOe. Wykonano pomiary efektu magnetoelektrycznego w temperaturze pokojowej w zależności od częstotliwości zmiennego pola magnetycznego (0.01-6.5 kHz) oraz natężenia stałego pola magnetycznego (0.3-6.5 kOe). Współczynnik magnetoelektryczny najpierw rośnie, osiąga maksimum a następnie lekko maleje ze wzrostem natęże-nia stałego pola magnetycznego. Współczynnik magnetoelektryczny badanego kompozytu rośnie ze wzrostem częstotliwości sinusoidalnego zmiennego pola magnetycznego osiągając maksymalną wartość około 50 mV/(Oe cm).

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“…Therefore, the ME effect was characterized by measuring the longitudinal ME voltage coefficient a ME using the dynamic lock-in amplifier method. 11 A pair of Helmholtz coils was used to generate an AC magnetic field with amplitude of 3 Oe and frequency of 300 Hz that is superimposed to a DC bias field driven by an electromagnet. Both fields are applied in-plane of the nanocomposite film and the generated small signal voltage across the sample thickness is measured using a digital Lock-in amplifier (Stanford Research SR850).…”

Section: B Ferroelectric and Magnetoelectric Characterizationmentioning

confidence: 99%

Magnetoelectric polymer nanocomposite for flexible electronics

Alnassar

Alfadhel

Ivanov

et al. 2015

Journal of Applied Physics

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This paper reports the fabrication and characterization of a new type of magnetoelectric polymer nanocomposite that exhibits excellent ferromagnetism and ferroelectricity simultaneously at room temperature. The multiferroic nanocomposite consists of high aspect ratio ferromagnetic iron nanowires embedded inside a ferroelectric co-polymer poly(vinylindene fluoride-trifluoroethylene), P(VDF-TrFE). The nanocomposite has been fabricated via a simple low temperature spin coating technique. Structural, ferromagnetic, ferroelectric, and magnetoelectric properties of the developed nanocomposite have been characterized. The nanocomposite films showed isotropic magnetic properties due to the random orientation of the iron nanowires inside the film. In addition, the embedded nanowires did not hinder the ferroelectric phase development of the nanocomposite. The developed nanocomposite showed a high magnetoelectric coupling response of 156 mV/cmOe measured at 3.1 kOe DC bias field. This value is among the highest reported magnetoelectric coupling in two phase particulate polymer nanocomposites.

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The lock-in technique for studying magnetoelectric effect

Cited by 169 publications

References 9 publications

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics

The Magnetoelectric Effect of a Ni0.3Zn0.62Cu0.08Fe2O4 - PbFe0.5Nb0.5O3 Multilayer Composite

Magnetoelectric polymer nanocomposite for flexible electronics

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The lock-in technique for studying magnetoelectric effect

Cited by 169 publications

References 9 publications

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi5Ti3FeO15Ceramics

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi5Ti3FeO15Ceramics

The Magnetoelectric Effect of a Ni0.3Zn0.62Cu0.08Fe2O4 - PbFe0.5Nb0.5O3 Multilayer Composite

Magnetoelectric polymer nanocomposite for flexible electronics

Contact Info

Product

Resources

About

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics

X-Ray Diffraction, Mössbauer Spectroscopy, and Magnetoelectric Effect Studies of Multiferroic Bi₅Ti₃FeO₁₅Ceramics