@article{093c166124f94cacb341c4604103ac0d,
title = "Structural and magnetic phase diagram of CeFeAsO(1 x)F(x) and its relation to high-temperature superconductivity",
abstract = "Recently, high-transition-temperature (high-Tc) superconductivity was discovered in the iron pnictide RFeAsO(1-x)F(x) (R, rare-earth metal) family of materials. We use neutron scattering to study the structural and magnetic phase transitions in CeFeAsO(1-x)F(x) as the system is tuned from a semimetal to a high-Tc 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≤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-Tc copper oxides. Comparison of the structural evolution of CeFeAsO(1-x)F(x) with other Fe-based superconductors suggests that the structural perfection of the Fe-As tetrahedron is important for the high-Tc superconductivity in these Fe pnictides.",
author = "Jun Zhao and Q. Huang and {De La Cruz}, Clarina and Shiliang Li and Lynn, {J. W.} and Y. Chen and Green, {M. A.} and Chen, {G. F.} and G. Li and Z. Li and Luo, {J. L.} and Wang, {N. L.} and Pengcheng Dai",
year = "2008",
month = dec,
doi = "10.1038/nmat2315",
language = "English",
volume = "7",
pages = "953--959",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "Nature Research",
number = "12",
}