河北师范大学学报—

期刊信息

刊名：河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
主办：河北师范大学
ISSN： 1000-5854
CN： 13-1061/N
中国科技核心期刊
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Ni/P(VDF-TrFE)的铁电性及磁电耦合效应

鲁佩佩¹

侯盼哲¹

王自君²

孙会元¹

(1.河北师范大学物理学院,河北石家庄 050024; 2.隆尧县固城中学,河北邢台 055350)
DOI： 10.13763/j.cnki.jhebnu.nse.202302001

Ferroelectric Properties and Magnetoelectric Coupling Effects of Ni/P(VDF-TrFE)

LU Peipei¹,HOU Panzhe¹,WANG Zijun²,SUN Huiyuan¹

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摘要/Abstract

摘要：

采用溶胶凝胶法和旋涂法在磁性金属镍片衬底上制备了有机铁电薄膜P(VDFTrFE),利用X射线衍射仪及振动样品磁强计表征了Ni/P(VDFTrFE)样品的晶体结构和金属镍片的磁学性质,结果表明,旋涂制备所得有机P(VDFTrFE)薄膜结晶形成了β 相,镍片的饱和磁场约为2 000 (kAm⁻¹/4π). 利用静电计和锁相放大器,研究了样品的电学性质和不同磁场方向的磁电耦合效应. 可以发现,金属镍片作为磁性衬底制备得到的Ni/P(VDFTrFE)属于复合多铁性材料,该材料的磁电耦合效应具有各向异性,表现为平行方向大于垂直方向. 实验所得结果为复合多铁性材料的制备和测试提供了重要的参考价值.

Abstract：

P(VDFTrFE) organic ferroelectric films were successfully prepared on the magnetic Ni plate substrate by sol-gel and spin-coating method. The structure and magnetic properties of the prepared sample were tested using X-ray diffractometer and vibrating sample magnetometer. The β crystalline phase of P(VDFTrFE) organic ferroelectric films was formed and the saturation magnetic field of Ni is about 2 000 (kAm⁻¹/4π). Particularly,the electric properties and magnetoelectric coupling effects related to the anisotropy were studied by the electrometer and lock-in amplifier. The Ni/P(VDFTrFE) fabricated on the Ni substrate is composite multiferroics and the magnetoelectric coupling effects of this material show anisotropy,the magnetoelectric (ME) voltage of in-plane larger than that of out-of-plane. The experimental results provide an important reference value for the preparation and testing of composite multiferroic materials.

关键词

关键词： 溶胶凝胶法 ; 磁电耦合效应 ; 铁电性 ; 复合多铁性材料

Key words： sol-gel method ; magnetoelectric coupling effects ; ferroelectricity ; composite multiferroics

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