Superconductivity at 55K in Iron-Based F-Doped Layered Quaternary Compound Sm[O<SUB>1-x</SUB>F<SUB>x</SUB>]FeAs

Chin. Phys. Lett.

2008, Vol. 25

Issue (6): 2215-2216 DOI:

Articles

Superconductivity at 55K in Iron-Based F-Doped Layered Quaternary Compound Sm[O_1-xF_x]FeAs

REN Zhi-An;LU Wei;YANG Jie;YI Wei;SHEN Xiao-Li;LI Zheng-Cai;CHE Guang-Can;DONG Xiao-Li;SUN Li-Ling;ZHOU Fang;ZHAO Zhong-Xian

National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190

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REN Zhi-An, LU Wei, YANG Jie et al 2008 Chin. Phys. Lett. 25 2215-2216

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Abstract We report the superconductivity in iron-based oxyarsenide Sm[O_1-xF_x]FeAs, with the onset resistivity transition temperature at 55.0K and Meissner transition at 54.6K. This compound has the same crystal structure as LaOFeAs with shrunk crystal lattices, and becomes the superconductor with the highest critical temperature among all materials besides copper oxides up to now.

Keywords: 74.10.+v 74.70.-b

Received: 24 April 2008 Published: 31 May 2008

PACS:	74.10.+v	(Occurrence, potential candidates)
	74.70.-b	(Superconducting materials other than cuprates)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2008/V25/I6/02215

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	REN Zhi-An
	LU Wei
	YANG Jie
	YI Wei
	SHEN Xiao-Li
	LI Zheng-Cai
	CHE Guang-Can
	DONG Xiao-Li
	SUN Li-Ling
	ZHOU Fang
	ZHAO Zhong-Xian

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[6] Chen X H, Wu T, Wu G, Liu R H, Chen H and Fang D F 2008 Condmat:arXiv 0803-3603
[7] Chen G F, Li Z, Wu D, Li G, Hu W Z, Dong J, Zheng P, Luo JL and Wang N L 2008 Condmat:arXiv 0803-3790
[8] Ren Z A, Yang J, Lu W, Yi W, Che G C, Dong X L, Sun L Land Zhao Z X 2008 Cond-mat:arXiv 08034283
[9] Ren Z A et al 2008 Cond-mat:arXiv 08034234
[10] Lu W, Yang J, Dong X L, Ren Z A, Che G C and Zhao Z X2008 Cond-mat:arXiv 0803-4266
[11] Han Q, Chen Y and Wang Z D 2008 Europhys. Lett. 823707
[12] McGuire M A et al 2008 Cond-mat:arXiv 0803-0796

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