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	Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic nd(2-x)ce(x)cuo(4)
	Wu, T.1,2; Wang, C. H.1,2; Wu, G.1,2; Fang, D. F.1,2; Luo, J. L.3; Liu, G. T.3; Chen, X. H.1,2
刊名	Journal of physics-condensed matter
	2008-07-09
卷号	20期号:27页码:8
ISSN号	0953-8984
DOI	10.1088/0953-8984/20/27/275226
通讯作者	Chen, x. h.(chenxh@ustc.edu.cn)
英文摘要	We have studied anisotropic magnetoresistance (mr) and magnetization with a rotating magnetic field (b) within the cuo(2) plane in lightly doped af nd(2-x)ce(x)cuo(4). a giant anisotropy in the mr is observed at low temperature, below 5 k. the c-axis resistivity can be tuned over about one order of magnitude just by changing the b direction within the cuo(2) plane, and a scaling behavior for the out-of-plane and in-plane mr is found. a 'spin valve' effect is proposed for explaining the giant anisotropy of the out-of-plane mr and the evolution of the scaling parameters with the external field. it is found that the field-induced spin-flop transition of the nd(3+) layer under high magnetic field is the key to understanding the giant anisotropy. these results suggest that a novel entanglement of charge and spin dominates the underlying physics.
WOS关键词	NONCOLLINEAR MAGNETIC-STRUCTURE ; NEUTRON-DIFFRACTION ; PHASE-TRANSITIONS ; ND2CUO4 ; PR2CUO4 ; CU ; ND ; YBA2CU3O6+X ; EXCITATIONS ; SCATTERING
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000257178300028
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373683
专题	物理研究所
通讯作者	Chen, X. H.
作者单位	1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Condensed Mat Phys, Inst Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wu, T.,Wang, C. H.,Wu, G.,et al. Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic nd(2-x)ce(x)cuo(4)[J]. Journal of physics-condensed matter,2008,20(27):8.
APA	Wu, T..,Wang, C. H..,Wu, G..,Fang, D. F..,Luo, J. L..,...&Chen, X. H..(2008).Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic nd(2-x)ce(x)cuo(4).Journal of physics-condensed matter,20(27),8.
MLA	Wu, T.,et al."Giant anisotropy of the magnetoresistance and the 'spin valve' effect in antiferromagnetic nd(2-x)ce(x)cuo(4)".Journal of physics-condensed matter 20.27(2008):8.

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