Superstructures of self-assembled multiferroic core-shell nanoparticles and studies on magneto-electric interactions
Superstructures of self-assembled multiferroic core-shell nanoparticles and studies on magneto-electric interactions
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DOI：
10.1063/1.4893699
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发表时间：
2014-08-18
影响因子：
4
通讯作者：
Srinivasan, G.
中科院分区：
文献类型：
--
作者：
Sreenivasulu, G.;Petrov, V. M.;Srinivasan, G.
利用磁场辅助组装(MFAA)技术，获得了镍铁氧体和钛酸钡化学自组装核壳纳米粒子的线性链超结构和阵列。通过测量磁电电压系数(MEVC)对应变介电效应的研究表明，MFAA样品的MEVC高于未组装的薄膜，且平行于阵列取向的磁场高于横向磁场。在MFAA-薄膜中测得的ME效应最强，最大MEVC为8 mV/cm Oe，是已报道的组装纳米复合材料中最高的之一。讨论了MFA样品中ME耦合的模型。(C)2014 AIP出版有限责任公司。
Superstructures of linear chains and arrays of chemically self-assembled core-shell nanoparticles of nickel ferrite and barium titanate have been obtained by magnetic-field-assisted assembly (MFAA). Studies on strain mediated magneto-electric (ME) effects by ME voltage coefficient (MEVC) measurements reveal higher MEVC for MFAA samples than for unassembled films and is higher for magnetic fields parallel to the array orientation than for transverse fields. The strongest ME effect is measured in MFAA-films with a maximum MEVC of 8 mV/cm Oe, one of the highest reported for as-assembled nanocomposite. A model is discussed for the ME coupling in the MFA samples. (C) 2014 AIP Publishing LLC.