Spin cycloid quenching in Nd3+-substituted BiFeO3

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	Spin cycloid quenching in Nd3+-substituted BiFeO3
	P. Chen; O. Gunaydin-Sen; W. J. Ren; Z. Qin; T. V. Brinzari; S. McGill; S. W. Cheong; J. L. Musfeldt
	2012
发表期刊	Physical Review B
ISSN	1098-0121
卷号	86 期号:1
摘要	Chemical substitution is an effective method for tailoring the electronic and magnetic properties of functional materials. In this work, we employ magneto-optical spectroscopy to investigate the behavior of the cycloid -> homogenous ordering transition in Bi1-xNdxFeO3. From the magneto-optical response, we construct a B-T-x phase diagram that shows how the critical field decreases with Nd3+ substitution, an effect that we model with Ginzburg-Landau free energy and harmonic cycloid approximations. Compared with nonmagnetic impurities like La3+, Nd3+ is a stronger quencher and yields nonlinear B-C-x behavior. Spiral magnetic order is quenched when x similar to 0.2. With increasing temperature (T < 90 K), the critical field rises gently, a consequence of magnetic anisotropy changes with temperature. These findings extend our understanding of charge-spin coupling and advance the development of magnetic ferroelectrics.
部门归属	[chen, p.; guenaydin-sen, oe; brinzari, t. v.; musfeldt, j. l.] univ tennessee, dept chem, knoxville, tn 37996 usa. [ren, w. j.; qin, z.; cheong, s-w.] rutgers state univ, dept phys, piscataway, nj 08854 usa. [ren, w. j.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [qin, z.] new jersey inst technol, newark, nj 07102 usa. [mcgill, s.] natl high magnet field lab, tallahassee, fl 32310 usa.;chen, p (reprint author), univ tennessee, dept chem, knoxville, tn 37996 usa.
关键词	Weak Ferromagnetism Phase-transitions Crystal-structure Bismuth Ferrite Temperature Antiferromagnets Ndfeo3 Mnf2 Wave
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59907
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Chen,O. Gunaydin-Sen,W. J. Ren,et al. Spin cycloid quenching in Nd3+-substituted BiFeO3[J]. Physical Review B,2012,86(1).
APA	P. Chen.,O. Gunaydin-Sen.,W. J. Ren.,Z. Qin.,T. V. Brinzari.,...&J. L. Musfeldt.(2012).Spin cycloid quenching in Nd3+-substituted BiFeO3.Physical Review B,86(1).
MLA	P. Chen,et al."Spin cycloid quenching in Nd3+-substituted BiFeO3".Physical Review B 86.1(2012).