Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with varying oxygen content

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	Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with varying oxygen content
	Zhao, YG ; Cai, W ; Zhao, J ; Zhang, XP ; Cao, BS ; Zhu, MH ; Zhang, LW ; Ogale, SB ; Wu, T ; Venkatesan, T ; Lu, L ; Mandal, TK ; Gopalakrishnan, J
刊名	PHYSICAL REVIEW B
	2002
卷号	65 期号:14
关键词	CHARGE-ORDERED STATE PHASE-SEPARATION COLOSSAL MAGNETORESISTANCE LA-139 NMR FERROMAGNETIC PHASE MN-55 NMR LA1-XCAXMNO3 MANGANITES TRANSITION FIELD
ISSN号	1098-0121
通讯作者	Zhao, YG: Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
中文摘要	We report the tuning of oxygen content of La0.5Ca0.5MnO3-y and its effect on electrical transport and magnetic properties. A small reduction of oxygen content leads to a decrease in sample resistivity, which is more dramatic at low temperatures. No significant change is seen to occur in the magnetic properties for this case. Further reduction in the oxygen content increases the resistivity remarkably, as compared to the as-prepared sample. The amplitude of the ferromagnetic (FM) transition at 225 K decreases, and the antiferromagnetic (AFM) transition at 130 K disappears. For samples with y=0.17, insulator-metal transition and paramagnetic-ferromagnetic transition occur around 167 K. The results are explained in terms of the effect of oxygen vacancies on the coexistence of the metallic FM phase and the insulating charge ordered AFM phase.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/36958]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhao, YG,Cai, W,Zhao, J,et al. Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with varying oxygen content[J]. PHYSICAL REVIEW B,2002,65(14).
APA	Zhao, YG.,Cai, W.,Zhao, J.,Zhang, XP.,Cao, BS.,...&Gopalakrishnan, J.(2002).Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with varying oxygen content.PHYSICAL REVIEW B,65(14).
MLA	Zhao, YG,et al."Electrical transport and magnetic properties of La0.5Ca0.5MnO3-y with varying oxygen content".PHYSICAL REVIEW B 65.14(2002).