Magneto-electric characteristics in (Mn, Cu) co-doped BiFeO3 multiferroic nanoparticles

被引：28

作者：

Khalid, Ayesha ^{[1
]}

Atiq, Shahid ^{[1
]}

Ramay, Shahid M. ^{[2
]}

Mahmood, Asif ^{[3
]}

Mustafa, Ghulam M. ^{[1
]}

Riaz, Saira ^{[1
]}

Naseem, Shahzad ^{[1
]}

机构：

[1] Univ Punjab, Ctr Excellence Solid State Phys, Quaid E Azam Campus, Lahore 54590, Pakistan

[2] King Saud Univ, Dept Phys & Astron, Coll Sci, POB 2455, Riyadh 11421, Saudi Arabia

[3] King Saud Univ, Dept Chem Engn, Coll Engn, Riyadh 11421, Saudi Arabia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 09期

关键词：

MAGNETIC-PROPERTIES; FERROELECTRIC PROPERTIES; ELECTRICAL-PROPERTIES; OPTICAL-PROPERTIES; CRYSTAL-STRUCTURE; TRANSITION; IMPEDANCE; CERAMICS; SUBSTITUTION; PR;

D O I：

10.1007/s10854-016-4927-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Multiferroic nanoparticles having general formula BiFe0.99-xMnxCu0.01O3 (x = 0, 0.01, 0.02, 0.03 & 0.04) were prepared by a chemically derived method to explore the magneto-electric characteristics of this new class of materials. X-ray diffraction confirmed that all the samples had rhombohedraly distorted cubic perovskite 3D lattice. Lattice constant was increased with increasing concentration of Mn. Micrographs obtained from a field emission scanning electron microscope revealed a fine distribution of well-shaped particles while the particle size was increased with increased contents of Mn. Enhanced hopping mechanism induced by substitution of Mn at the lattice sites of Fe resulted in an increased AC conductivity. Ferroelectricity was observed to increase with increased Mn, attributed mainly to the leakage current due to free charge carriers instigated by multiple oxidation states of Fe and Mn. It has been observed that antiferromagnetic bismuth ferrite begins to show ferromagnetic behavior due to the collapse of antiferromagnetic spin structure with increased Mn contents.

引用

页码：8966 / 8972

页数：7

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