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Artificial Control of Giant Converse Magnetoelectric Effect in Spintronic Multiferroic Heterostructure.
Adv Sci (Weinh)
December 2024
Center for Spintronics Research Network, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.
To develop voltage-controlled magnetization switching technologies for spintronics applications, a highly (422)-oriented CoFeSi layer on top of the piezoelectric PMN-PT(011) is experimentally demonstrated by inserting a vanadium (V) ultra-thin layer. The strength of the growth-induced magnetic anisotropy of the (422)-oriented CoFeSi layers can be artificially controlled by tuning the thicknesses of the inserted V and the grown CoFeSi layers. As a result, a giant converse magnetoelectric effect (over 10 s m) and a non-volatile binary state at zero electric field are simultaneously achieved in the (422)-oriented CoFeSi/V/PMN-PT(011) multiferroic heterostructure.
View Article and Find Full Text PDFRobust Magnetoelectric Backscatter Communication System for Bioelectronic Implants.
Res Sq
December 2024
Department of Electrical and Computer Engineering, Rice University, 6100 Main St, Houston, TX, 77005.
Wireless communication technologies for bioelectronic implants enable remote monitoring for diagnosis and adaptive therapeutic intervention without the constraints of wired connections. However, wireless data uplink from millimeter-scale devices deep in the body struggles to achieve low power consumption while maintaining large misalignment tolerances. Here, we report a passive wireless backscatter communication system based on magnetoelectric transducers that consumes less than 0.
View Article and Find Full Text PDFPerspective on room temperature and low-field-induced magnetoelectric coupling in molecular complexes.
Dalton Trans
December 2024
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nangjing University, Nanjing, China.
Magnetoelectric (ME) coupling refers to the interaction between electric and magnetic orders in materials. Based on ME coupling, the phenomenon that an external magnetic field induces electric polarization and an external electric field induces change in mangetization can be observed and is referred to as the ME effect. Examples of the ME effect include magnetodielectric (MD), magnetoferroelectric (MF), magnetoresistence (MR) and electrically controlled magnetism effects.
View Article and Find Full Text PDF[Key Techniques of Three-Dimensional Electrophysiology Catheter Positioning Based on Magnetic-Electric Fusion].
Zhongguo Yi Liao Qi Xie Za Zhi
November 2024
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055.
In cardiac ablation procedures, the accuracy of catheter positioning determines the authenticity of the cardiac model and the accuracy of the ablation target. This article reviews the literature on catheter positioning in electrophysiology and summarizes the key technologies for catheter positioning, such as magnetic-electric fusion and interference suppression. Addressing the limitations of electric and magnetic positioning individually, the paper elaborates on the rationale for catheter positioning technology based on magnetic-electric fusion.
View Article and Find Full Text PDFAnion Doping as a "Trigger" to Modulate Defect-Tailored Dielectric Coupling for Ultrathin Microwave Absorber.
Small
December 2024
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, China.
Anion doping engineering is recognized as a prospective strategy to adjust the electronic configuration and transport capacity of carbon-based magnetoelectric hybrids and to optimize defects for the modulation of electromagnetic (EM) properties. This study effectively accomplishes an overwhelming enhancement in the dielectric coupling between conduction and polarization for the CuCo bimetallic/carbon system by employing in situ (N, O)/ex situ (S, Se) doping and defect modulation strategies. The well-designed lattice distortions are facilitated by the large atomic radii (Se) intercalated carbon skeleton and the bimetallic CuCo, which activate the reinforcement of the dipole polarization in the high-frequency region.
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