Neutron scattering study of magnetic phase separation in nanocrystalline La(5/8)Ca(3/8)MnO(3)

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	Neutron scattering study of magnetic phase separation in nanocrystalline La(5/8)Ca(3/8)MnO(3)
	C. Dhital; C. de la Cruz; C. Opeil; A. Treat; K. F. Wang; J. M. Liu; Z. F. Ren; S. D. Wilson
	2011
发表期刊	Physical Review B
ISSN	1098-0121
卷号	84 期号:14
摘要	We demonstrate that magnetic phase separation and competing spin order in the colossal magnetoresistive (CMR) manganites can be directly explored via tuning strain in bulk samples of nanocrystalline La(1-x)Ca(x)MnO(3). Our results show that strain can be reversibly frozen into the lattice in order to stabilize coexisting antiferromagnetic domains within the nominally ferromagnetic metallic state of La(5/8)Ca(3/8)MnO(3). The measurement of tunable phase separation via magnetic neutron powder diffraction presents a direct route of exploring the correlated spin properties of phase separated charge/magnetic order in highly strained CMR materials and opens a potential avenue for realizing intergrain spin tunnel junction networks with enhanced CMR behavior in a chemically homogeneous material.
部门归属	[dhital, chetan; opeil, c.; treat, a.; wang, k. f.; ren, z. f.; wilson, stephen d.] boston coll, dept phys, chestnut hill, ma 02467 usa. [de la cruz, clarina] oak ridge natl lab, neutron scattering sci div, oak ridge, tn 37831 usa. [wang, k. f.; liu, j. -m.] nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china. [wang, k. f.; liu, j. -m.] nanjing univ, dept phys, nanjing 210093, peoples r china. [liu, j. -m.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;dhital, c (reprint author), boston coll, dept phys, chestnut hill, ma 02467 usa;stephen.wilson@bc.edu
关键词	Colossal Magnetoresistance Transport-properties Doped Manganites Particles Size La0.7ca0.3mno3 Temperature Enhancement Transition Surface
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30300
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Dhital,C. de la Cruz,C. Opeil,et al. Neutron scattering study of magnetic phase separation in nanocrystalline La(5/8)Ca(3/8)MnO(3)[J]. Physical Review B,2011,84(14).
APA	C. Dhital.,C. de la Cruz.,C. Opeil.,A. Treat.,K. F. Wang.,...&S. D. Wilson.(2011).Neutron scattering study of magnetic phase separation in nanocrystalline La(5/8)Ca(3/8)MnO(3).Physical Review B,84(14).
MLA	C. Dhital,et al."Neutron scattering study of magnetic phase separation in nanocrystalline La(5/8)Ca(3/8)MnO(3)".Physical Review B 84.14(2011).