分子多铁性纳米复合材料中的磁电相互作用。
Magnetoelectric interaction in molecular multiferroic nanocomposites.
作者信息
Jalouli Alireza, Ren Shenqiang
机构信息
Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York Buffalo New York 14260 USA
Department of Chemistry, University at Buffalo, The State University of New York Buffalo New York 14260 USA.
出版信息
RSC Adv. 2022 Aug 24;12(37):24050-24054. doi: 10.1039/d2ra04060c. eCollection 2022 Aug 22.
Incorporation of magnetic and electric orders in a form of multiferroics is an interesting topic in materials science. Making a molecular heterogeneous composite by incorporating the molecular magnet vanadium-chromium Prussian blue analogue (V-Cr PBA) and a molecular ferroelectric imidazolium chloride CNH-ClO (ImClO) provides a pathway towards achieving the room temperature magnetoelectric effect. The change of magnetization of about 6% is shown as a result of applying an electric field (21 kV cm) to the composite made of the aforementioned molecular crystals at room temperature. In the ferromagnetic resonance measurement (FMR) under the effect of an applied electric field, a shift of the resonance magnetic field is also observed in the nanocomposites. This work provides a pathway towards molecular multiferroic nanocomposites with magnetoelectric coupling interactions at room temperature.
将磁性和电有序以多铁性形式结合是材料科学中一个有趣的课题。通过将分子磁体钒 - 铬普鲁士蓝类似物（V-Cr PBA）和分子铁电体氯化咪唑鎓CNH-ClO（ImClO）结合制备分子异质复合材料，为实现室温磁电效应提供了一条途径。在室温下对由上述分子晶体制成的复合材料施加电场（21 kV/cm）时，会出现约6%的磁化强度变化。在施加电场的影响下进行的铁磁共振测量（FMR）中，在纳米复合材料中也观察到了共振磁场的偏移。这项工作为在室温下具有磁电耦合相互作用的分子多铁性纳米复合材料提供了一条途径。
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