Magnetoelectric effect in a Terfenol-D and electret capacitor …

A capacitor system based on a Terfenol-D rod and an electret film has been proposed. We used the traditional dynamic measurement to investigate the magnetoelectric effect of the system at the ...

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Integrated Tunable Magnetoelectric RF Inductors

A great challenge in power/RF electronics has been achieving integrated magnetic inductors with high quality factor (Q-factor) and high inductance density at gigahertz frequencies. In this article, integrated solenoid magnetoelectric inductors based on FeGaB/Al2O3 multilayer as the magnetic core are designed to operate at high gigahertz frequencies, high Q-factor, and inductance …

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Magnetoelectric coupling coefficient in multiferroic capacitors: …

Abstract. Multiferroic materials are characterized by their magnetoelectric coupling coefficient, which can be obtained using a lock-in amplifier by measuring the voltage developed across a multiferroic capacitor in a time-variable magnetic field, H ac cos(ωt), where H ac and ω are the amplitude and frequency of the applied magnetic field. The measurement method, despite its …

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Magnetoelectric effect in a Terfenol-D and electret …

A capacitor system based on a Terfenol-D rod and an electret film has been proposed. We used the traditional dynamic measurement to investigate the magnetoelectric effect of the system at the ...

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Physics-Based Models for Magneto-Electric Spin-Orbit Logic …

middle magnetoelectric (ME) layer and the bottom electrode (BE) layer essentially form a multiferroic capacitor as shown in the Fig. 3 (a). The switching of this capacitor involves both ferroelectric and magnetic dynamics, and the coupling between them. This switching stage provides the greatest contribution to

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Magnetoelectric response in a new tunable capacitor system …

The maximum tunability of the magnetoelectric response based on the DC bias magnetic field is found to be more than 10%. These findings not only enhance the use of the dynamic method of magnetoelectric measurement, but also provide a new type of capacitor for potential applications in magnetic detections, magnetoelectric sensors and energy ...

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Magnetoelectric response in a new tunable capacitor system …

A new tunable capacitor system based on a magnetostrictive material and an electret film has been proposed.. The system exhibits a high magnetoelectric response under an applied magnetic field.. the output AC voltage of the system is significantly affected by the DC bias and AC signal magnetic field.

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Enhanced magnetoelectric voltage in ferrite/PZT/ferrite …

In this paper, we report the fabrication of a rare-earth free current sensor based on a PZT/NiCoZn-ferrite magnetoelectric (ME) trilayer composite disk. To improve the sensitivity of the sensor, the structure uses an in-plane series connection, which increases the ME voltage by two for a fixed volume. Then, we propose a full characterization of the sensor: electrical …

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Planar magnetoelectric voltage transformer based on a composite ...

The transformer uses a coilless system (the so-called "magnetic capacitor") to excite the direct magnetoelectric effect at the frequency of the acoustic resonance of the structure, which made it possible to significantly simplify the design.

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Converse magnetoelectric coupling in multilayer capacitors

We report electrically induced changes of 20% in both the remnant magnetization and the coercive field of a magnetoelectric heterostructure. This heterostructure is an industrially produced multilayer capacitor comprising Ni-based magnetostrictive electrodes sandwiching a Ba Ti O 3-based dielectric that is ferroelectric and therefore ...

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Spin-Orbit Logic with Magnetoelectric Nodes: A Scalable …

As the charge accumulates on the magnetoelectric capacitor, a strong magnetoelectric interaction causes the switching of magnetization in the output nanomagnet. We choose the following parameters of the magnetoelectric capacitor: 6 thickness t ME 5nm, dielectric constant H 500, area A 60 u 20nm. Then the

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Spin-Orbit Logic with Magnetoelectric Switching: A Multi …

As the charge accumulates on the magnetoelectric capacitor, a strong magnetoelectric interaction causes the switching of magnetization in the output nanomagnet. 6 The innovative impact of MESO logic is realized with the output charge mediated interconnect at …

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A wireless millimetric magnetoelectric implant for the …

The ME-BIT itself consists of a magnetoelectric film with a size of 1.75 mm × 5 mm and a thickness of 0.3 mm for wireless power and data transfer, an ASIC for modulating the ME power and ...

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(PDF) Gradient-Type Magnetoelectric Current Sensor with Strong ...

A novel gradient-type magnetoelectric (ME) current sensor operating in magnetic field gradient (MFG) detection and conversion mode is developed based on a pair of ME composites that have a back-to ...

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Magnetoelectric Magnetometers

The magnetoelectric (ME) sensor represents a structure with ME coupling with two electrodes for connecting to the voltmeter. The action of the sensor is based on the magnetoelectric effect. A composite of magnetostrictive and piezoelectric materials is expected to be magnetoelectric since a deformation of the magnetostrictive phase in an ...

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Ultrahigh magnetoelectric voltage coefficients in laminates of …

In this paper, a magnetoelectric laminate composite based on length magnetized Metglas and length-polarized ternary 0.35Pb(In 1/2 Nb 1/2)O 3 –0.35Pb(Mg 1/3 Nb 2/3)O 3 –0.30PbTiO 3 (PIMNT) single crystal has been presented. This Metglas/PIMNT L–L mode composite exhibits ultrahigh magnetoelectric voltage coefficients of ∼17 V/Oe at quasi-static …

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Magnetoelectric response in a new tunable capacitor system …

Magnetoelectric response in a new tunable capacitor system based on magnetostrictive material and electret. Author links open overlay panel Yun Zhou a, Gangjin Chen b, Yadong Sun a, ... The detected magnetoelectric response of the system increases with increasing magnitude of the DC bias magnetic field and exhibits hysteresis. The maximum ...

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Scalable energy-efficient magnetoelectric spin–orbit logic

prises a magnetoelectric switching capacitor, a ferromagnet and a spin-to-charge conversion module (see ''Material requirements for 1–10-aJ-class MESO logic''). In Fig. 1b, when the input ...

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Magnetoelectrics and multiferroics: Materials and opportunities …

One way to realize a converse magnetoelectric effect is established through heterostructures where the two subsystems (a ferroelectric piezoelectric and a magnetostrictive ferromagnet) are coupled by mechanical strain (so-called composite multiferroics). 4,12,15 The appeal here is that the materials are abundant, easily integrable, function at room temperature …

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Correlation between tunability and anisotropy in magnetoelectric ...

Electric field modulation of magnetic properties via magnetoelectric coupling in composite materials is of fundamental and technological importance for realizing tunable energy efficient electronics.

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Charge, voltage, and work-conversion formulas for magnetoelectric ...

Interest in magnetoelectric (ME) devices is motivated by potential applications such as sensors [], energy harvesters [2–8], and solid state memory [].Although ME materials exist in nature [], their ME charge coefficient β is too small (at 2 K [] 1) and/or their Néel temperature is too low for practical applications.On the other hand, composite materials can …

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Voltage-driven motion of nitrogen ions: a new paradigm for …

Magnetoelectric measurements were carried out by performing vibrating sample magnetometry while electrolyte gating the films in a capacitor configuration at room-temperature.

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Scalable energy-efficient magnetoelectric spin–orbit logic

The magnetoelectric spin–orbit (MESO) device comprises two technologically scalable transduction mechanisms: ferroelectric/magnetoelectric switching 26,27,28,29,30 and topological conversion of...

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Magnetic energy harvesting with magnetoelectrics: an emerging ...

2.1 Traditional electromagnetic generators A current transformer is the commonly used device for magnetic field harvesting and operates on the basis of electromagnetic induction (Faraday''s induction). 24–26 Tashiro et al., used Brooks coils to harvest electricity from magnetic fields, and a power density of 1.47 μW cm −3 was achieved from a magnetic field of ∼21 μT. 21 This …

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Magnetic energy harvesting with magnetoelectrics: …

2.1 Traditional electromagnetic generators A current transformer is the commonly used device for magnetic field harvesting and operates on the basis of electromagnetic induction (Faraday''s induction). 24–26 Tashiro et al., used …

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Electrochemical approaches to room temperature magnetoelectric ...

Electrochemical voltage control of magnetism is an emerging approach for energy-efficient magnetoelectric materials. In contrast to conventional magnetoelectric concepts, which are typically restricted to low temperatures, low magnetization, or complex heterostructures, electrochemical routines can be efficiently applied to magnetic oxides and metals with high …

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Magnetoelectric effect: principles and applications in biology and ...

1. Introduction. A class of multiferroic structures exhibiting magnetoelectric (ME) effect, which is a linear coupling between the applied magnetic field and generated electric voltage, has been attracted more and more research attention over the last years [,,,, ].The coupling between electric and magnetic properties in ME materials provides exceptional …

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Voltage-based magnetization switching and reading in …

These capacitors based on a 30-nm-thick BiFeO 3 show large saturation polarization (close to the bulk value), with low leakage, as well as low switching voltages. Indeed, we observe switching ...

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Imaging Local Effects of Voltage and Boron Doping on Spin …

Chromia (Cr 2 O 3) is a magnetoelectric oxide that permits voltage-control of the antiferromagnetic (AFM) order, but it suffers technological constraints due to its low Néel Temperature (T N ≈307 K) and the need of a symmetry-breaking applied magnetic field to achieve reversal of the Néel vector. Recently, boron (B) doping of Cr 2 O 3 films led to an increase T N …

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Multiferroic magnetoelectric nanostructures for novel device ...

Multiferroic magnetoelectric nanostructures with coupled magnetization and electric polarization across their interfaces have stimulated intense research activities over the past decade. Such interface-based magnetoelectric coupling can be exploited to significantly improve the performance of many devices such as memories, tunable radio …

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Magnetoelectric Magnetometers

In this article, we discuss recent progresses on the understanding of magnetoelectric coupling mechanisms and the design of magnetoelectric heterostructures guided by theory and computation.

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Magnetoelectric coupling coefficient in multiferroic …

The simplest equivalent circuit of a multiferroic capacitor that includes the distributed capacitors and inductors in the signal path is an LC circuit, thus a voltage divider, as shown in Fig. 1(b). The lock-in amplifier measures V tot, which is V tot ¼ V c þ V L, (2) where V c and V L are the voltages across the capacitor and inductor,

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Voltage-based magnetization switching and reading in magnetoelectric …

These capacitors based on a 30-nm-thick BiFeO 3 show large saturation polarization (close to the bulk value), with low leakage, as well as low switching voltages. Indeed, we observe switching ...

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A magnetoelectric energy harvester and management circuit …

A magnetoelectric energy harvester and management circuit for wireless sensor network. Author links open overlay panel Ping Li, Yumei Wen, Pangang Liu, Xinshen Li, Chaobo Jia. Show more. Add to Mendeley. Share. Cite. ... While the capacitors (C 1 and C 2) are charged in parallel, the stored energy in the capacitors will increase with the ...

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Converse Magnetoelectric Composite Resonator for Sensing …

The PE plate capacitor forms the input, the tuned pickup coil followed by an amplifier forms the output. (b) The circuit depicting the ME composite as a radiative capacitor structure. The signal ...

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Ceramic-Heterostructure-Based Magnetoelectric Voltage …

A voltage transformer employing the magnetoelectric effect in a composite ceramic heterostructure with layers of a magnetostrictive nickel–cobalt ferrite and a piezoelectric lead zirconate–titanate is described. ... Both input and output voltages were measured using a voltmeter (AKIP 2401) with an input impedance of more than 10 MΩ ...

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