LETTERS Electronic structure of the iron-based superconductor LaOFeP (original) (raw)
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2011
The discovery of high temperature superconductivity in the iron pnictide compound LaO1−xFxFeAs with Tc = 26K has created enormous interest in the high-Tc superconductor community. So far, four prototypes of crystal structures have been found in the Fe-pnictide family. All four show a structural deformation followed or accompanied by a magnetic transition from a high temperature paramagnetic conductor to a low temperature antiferromagnetic metal whose transition temperature TN varies between the compounds. Charge carrier doping, isovalent substitution of the As atoms or the application of pressure suppresses the antiferromagnetic spin density wave (SDW) order and leads to a superconducting phase. More recently high Tc superconductivity has been also detected in iron chalchogenides with similar normal state properties. Since superconductivity is an instability of the normal state, the study of normal state electronic structure in comparison with superconducting state could reveal impo...
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