Structural and magnetic phase diagram of CeFeAsO1-xFx and its relation to high-temperature superconductivity

被引：677

作者：

Zhao, Jun ^{[1
]}

Huang, Q. ^{[2
]}

de la Cruz, Clarina ^{[1
,3
]}

Li, Shiliang ^{[1
]}

Lynn, J. W. ^{[2
]}

Chen, Y. ^{[2
,4
]}

Green, M. A. ^{[2
,4
]}

Chen, G. F. ^{[5
]}

Li, G. ^{[5
]}

Li, Z. ^{[5
]}

Luo, J. L. ^{[5
]}

Wang, N. L. ^{[5
]}

Dai, Pengcheng ^{[1
,3
]}

机构：

[1] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[2] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

[3] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA

[4] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[5] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

NATURE MATERIALS | 2008年 / 7卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1038/nmat2315

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recently, high-transition-temperature (high-T-c) superconductivity was discovered in the iron pnictide RFeAsO1-xFx (R, rare-earth metal) family of materials. We use neutron scattering to study the structural and magnetic phase transitions in CeFeAsO1-xFx as the system is tuned from a semimetal to a high-T-c superconductor through fluorine (F) doping, x. In the undoped state, CeFeAsO develops a structural lattice distortion followed by a collinear antiferromagnetic order with decreasing temperature. With increasing fluorine doping, the structural phase transition decreases gradually and vanishes within the superconductivity dome near x D 0 : 10, whereas the antiferromagnetic order is suppressed before the appearance of superconductivity for x > 0.06, resulting in an electronic phase diagram remarkably similar to that of the high-T-c copper oxides. Comparison of the structural evolution of CeFeAsO1-xFx with other Fe-based superconductors suggests that the structural perfection of the Fe-As tetrahedron is important for the high-T-c superconductivity in these Fe pnictides.

引用

页码：953 / 959

页数：7

共 44 条

[1] Magnetic neutron scattering in hole-doped cuprate superconductors [J].

Birgeneau, Robert J. ;

Stock, Chris ;

Tranquada, John M. ;

Yamada, Kazuyoshi .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (11)

[2] High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy [J].

Bos, Jan-Willem G. ;

Penny, George B. S. ;

Rodgers, Jennifer A. ;

Sokolov, Dmitry A. ;

Huxley, Andrew D. ;

Attfield, J. Paul .

CHEMICAL COMMUNICATIONS, 2008, (31) :3634-3635

[3]

CARLO JP, 2008, MU SR STUDIES RE OF

[4] Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs [J].

Chen, G. F. ;

Li, Z. ;

Wu, D. ;

Li, G. ;

Hu, W. Z. ;

Dong, J. ;

Zheng, P. ;

Luo, J. L. ;

Wang, N. L. .

PHYSICAL REVIEW LETTERS, 2008, 100 (24)

[5] Superconductivity at 43 K in SmFeAsO1-xFx [J].

Chen, X. H. ;

Wu, T. ;

Wu, G. ;

Liu, R. H. ;

Chen, H. ;

Fang, D. F. .

NATURE, 2008, 453 (7196) :761-762

[6] Magnetic order of the iron spins in NdFeAsO [J].

Chen, Ying ;

Lynn, J. W. ;

Li, J. ;

Li, G. ;

Chen, G. F. ;

Luo, J. L. ;

Wang, N. L. ;

Dai, Pengcheng ;

dela Cruz, C. ;

Mook, H. A. .

PHYSICAL REVIEW B, 2008, 78 (06)

[7] Magnetic order close to superconductivity in the iron-based layered LaO1-xFxFeAs systems [J].

de la Cruz, Clarina ;

Huang, Q. ;

Lynn, J. W. ;

Li, Jiying ;

Ratcliff, W., II ;

Zarestky, J. L. ;

Mook, H. A. ;

Chen, G. F. ;

Luo, J. L. ;

Wang, N. L. ;

Dai, Pengcheng .

NATURE, 2008, 453 (7197) :899-902

[8] Competing orders and spin-density-wave instability in La(O1-xFx) FeAs [J].

Dong, J. ;

Zhang, H. J. ;

Xu, G. ;

Li, Z. ;

Li, G. ;

Hu, W. Z. ;

Wu, D. ;

Chen, G. F. ;

Dai, X. ;

Luo, J. L. ;

Fang, Z. ;

Wang, N. L. .

EPL, 2008, 83 (02)

[9]

DREW AJ, 2008, COEXISTENCE STATIC M

[10] Theory of electron nematic order in LaFeAsO [J].

Fang, Chen ;

Yao, Hong ;

Tsai, Wei-Feng ;

Hu, JiangPing ;

Kivelson, Steven A. .

PHYSICAL REVIEW B, 2008, 77 (22)

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