Comparative studies on transport and magnetotransport behaviour of as-deposited and ex situ annealed A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films

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	Comparative studies on transport and magnetotransport behaviour of as-deposited and ex situ annealed A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films
	Q. Zhang; Y. Q. Zhang; Y. L. Zhu; J. H. Cho; Z. D. Zhang
	2010
发表期刊	Physica Status Solidi a-Applications and Materials Science
ISSN	1862-6300
卷号	207 期号:11 页码:2558-2563
摘要	Magnetic, transport and magnetotransport properties of A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films with different thicknesses grown on SrTiO(3) (100) have been investigated before and after ex situ annealing processes. In contrast to the bulk system, all as-deposited films exhibit insulating behaviour due to the local Jahn-Teller distortion induced by in-plane tensile strain. The annealing process only induces an insulator-metal transition in ultrathin film with a thickness of 16 nm, resulting in metallically conductive behaviour and the transport properties similar to those of the bulk. This may be ascribed to the cooperative influences of changes in oxygen content and strain-induced d(x2-y2)-type orbital order owing to the annealing process. When a magnetic field of 70 kOe is applied, the metallic behaviour appears in a broad temperature range in the annealed film with 16 nm thickness and, the metallic behaviour is also observed in the annealed film with 32 nm thickness. The different effects of the external magnetic field on the transport properties of as-deposited and annealed Nd(0.45)Sr(0.55)MnO(3) films are discussed. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
部门归属	[zhang, q.; zhang, y. q.; zhu, y. l.; zhang, z. d.] chinese acad sci, int ctr mat phys, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [cho, j. h.] pusan natl univ, res ctr dielect & adv matter phys, dept phys, pusan 609735, south korea.;zhang, q (reprint author), chinese acad sci, int ctr mat phys, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;qzhangemail@gmail.com
关键词	Antiferromagnetics Colossal Magnetoresistance Manganites Metal-insulator Transitions Pulsed Laser Deposition Thin Films Thin-films Doped Manganites Magnetoresistance Transition Oxides Strain
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31717
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Zhang,Y. Q. Zhang,Y. L. Zhu,et al. Comparative studies on transport and magnetotransport behaviour of as-deposited and ex situ annealed A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films[J]. Physica Status Solidi a-Applications and Materials Science,2010,207(11):2558-2563.
APA	Q. Zhang,Y. Q. Zhang,Y. L. Zhu,J. H. Cho,&Z. D. Zhang.(2010).Comparative studies on transport and magnetotransport behaviour of as-deposited and ex situ annealed A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films.Physica Status Solidi a-Applications and Materials Science,207(11),2558-2563.
MLA	Q. Zhang,et al."Comparative studies on transport and magnetotransport behaviour of as-deposited and ex situ annealed A-type antiferromagnetic Nd(0.45)Sr(0.55)MnO(3) films".Physica Status Solidi a-Applications and Materials Science 207.11(2010):2558-2563.