Mean-field theory for ferroelectricity in Ca(3)CoMnO(6)

IMR OpenIR

	Mean-field theory for ferroelectricity in Ca(3)CoMnO(6)
	Y. J. Guo; S. Dong; K. F. Wang; J. M. Liu
	2009
发表期刊	Physical Review B
ISSN	1098-0121
卷号	79 期号:24
摘要	An elastic Ising model for CoMnO(6) chain is proposed to explain the ferroelectricity induced by collinear magnetic order in Ca(3)CoMnO(6), and then a mean-field theory with interchain spin interactions based on this model is developed. With inclusion of the dynamics of polarization domains at finite temperature, we address the rationality of our theory by the good agreement of the calculated electric polarization and dielectric susceptibility with the reported data on Ca(3)Co(2-x)Mn(x)O(6) (x approximate to 0.96) [Y. J. Choi, H. T. Yi, S. Lee, Q. Huang, V. Kiryukhin, and S.-W. Cheong, Phys. Rev. Lett. 100, 047601 (2008)], a typical diatomic Ising spin chain system, while the predicted magnetic susceptibility shows some difference from experiment, the reason of which is discussed.
部门归属	[guo, y. j.; dong, shuai; wang, k. f.; liu, j. -m.] nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china. [dong, shuai] univ tennessee, dept phys & astron, knoxville, tn 37996 usa. [dong, shuai] oak ridge natl lab, mat sci & technol div, oak ridge, tn 37831 usa. [liu, j. -m.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, jm (reprint author), nanjing univ, natl lab solid state microstruct, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Calcium Compounds Cobalt Compounds Dielectric Polarisation Ferroelectricity Ising Model Magnetic Susceptibility Multiferroics Optical Susceptibility One-dimensional Oxides Magnetic-properties Multiferroics ca3co1+xmn1-xo6
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31939
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Guo,S. Dong,K. F. Wang,et al. Mean-field theory for ferroelectricity in Ca(3)CoMnO(6)[J]. Physical Review B,2009,79(24).
APA	Y. J. Guo,S. Dong,K. F. Wang,&J. M. Liu.(2009).Mean-field theory for ferroelectricity in Ca(3)CoMnO(6).Physical Review B,79(24).
MLA	Y. J. Guo,et al."Mean-field theory for ferroelectricity in Ca(3)CoMnO(6)".Physical Review B 79.24(2009).