Electron-conduction mechanism and specific heat above transition temperature in LaFeAsO and BaFe(2)As(2) superconductors

Details Electron-conduction mechanism and specific heat above transition temperature in LaFeAsO and BaFe(2)As(2) superconductors Electron-conduction mechanism and specific heat above transition temperature in LaFeAsO and BaFe(2)As(2) superconductors

2009-02-20

arxiv.org/abs/0902.3516v2

J. Supercond. Nov. Magn. 22 (2009) 785

Physics

Condensed Matter

Superconductivity

Published online: J. Supercond. Nov. Magn. (2009)

Scientific paper

The ionization energy theory is used to calculate the evolution of the resistivity and specific heat curves with respect to different doping elements in the recently discovered superconducting Pnictide materials. Subsequently, the electron-conduction mechanism in the Pnictides above the structural transition temperature is explained unambiguously, which is also consistent with other strongly correlated matter, such as cuprates, manganites, titanates and magnetic semiconductors. Therefore, the superconductivity is not uniquely corresponds to the electronic properties above the structural transition temperature. Detailed prediction are given on these compounds for various doping elements, namely, La(Sm,Ce,Ba,Sr,Ca)FeAsO(F,Cl,Br) and Ba(Sr,Ca,K,Rb,Cs)Fe(2)As(2).

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