Modulated multiferroicity of Cr-doped orthorhombic polycrystalline YMnO3

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	Modulated multiferroicity of Cr-doped orthorhombic polycrystalline YMnO3
	S. Z. Li; T. T. Wang; H. Q. Han; X. Z. Wang; H. Li; J. Liu; J. M. Liu
	2012
发表期刊	Journal of Physics D-Applied Physics
ISSN	0022-3727
卷号	45 期号:5
摘要	We synthesize a series of orthorhombic polycrystalline YMn(1-x)CrxO(3) (o-YMCO, x < 0.3) samples using high-pressure sintering, and investigate the multiferroicity by various characterization techniques. It is identified that Cr doping remarkably enhances the ferromagnetism, and the ferroelectric polarization is also significantly modulated. The enhanced ferromagnetism is argued to originate from the ferromagnetic interactions between neighbouring Cr3+ spins and Mn3+ spins. While the microscopic mechanism for polarization generation remains to be clarified, it may be argued, based on the response of polarization against external magnetic field, that Cr doping induces a partial transition from the symmetric exchange striction mechanism in o-YMnO3 to the asymmetric exchange striction mechanism in o-YMCO for ferroelectricity generation.
部门归属	[li, s. z.; liu, j-m] nanjing univ, solid state microstruct lab, nanjing 210093, jiangsu, peoples r china. [li, s. z.; wang, t. t.; han, h. q.; li, h.] huangshi inst technol, sch phys, huangshi 435003, peoples r china. [wang, x. z.] hubei normal univ, dept phys, huangshi 435000, peoples r china. [liu, j.] chinese acad sci, shanghai inst ceram, shanghai 200050, peoples r china. [liu, j-m] chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, jiangsu, peoples r china.;liujm@nju.edu.cn
关键词	Magnetic-structure
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60070
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Z. Li,T. T. Wang,H. Q. Han,et al. Modulated multiferroicity of Cr-doped orthorhombic polycrystalline YMnO3[J]. Journal of Physics D-Applied Physics,2012,45(5).
APA	S. Z. Li.,T. T. Wang.,H. Q. Han.,X. Z. Wang.,H. Li.,...&J. M. Liu.(2012).Modulated multiferroicity of Cr-doped orthorhombic polycrystalline YMnO3.Journal of Physics D-Applied Physics,45(5).
MLA	S. Z. Li,et al."Modulated multiferroicity of Cr-doped orthorhombic polycrystalline YMnO3".Journal of Physics D-Applied Physics 45.5(2012).