Enhanced density of states in Li (Fe1− xCox) As single crystals near x= 0.06 as implied by transport properties
Abstract Single crystals of Li (Fe 1− x Co x) As (x= 0.00, 0.02, 0.04, 0.06, 0.08 and 0.1) were
grown by the Sn-flux method and their resistivity behaviors were investigated. As the Co
concentration x increased, the superconducting transition temperature T c as well as the
residual resistivity ratio systematically decreased, indicating a monotonic doping of electron
carriers. Upon the analysis of the Fermi-liquid behavior of the resistivity and by using the
Kadowaki–Woods relation, the T 2 coefficient of the resistivity A and the Sommerfeld …
grown by the Sn-flux method and their resistivity behaviors were investigated. As the Co
concentration x increased, the superconducting transition temperature T c as well as the
residual resistivity ratio systematically decreased, indicating a monotonic doping of electron
carriers. Upon the analysis of the Fermi-liquid behavior of the resistivity and by using the
Kadowaki–Woods relation, the T 2 coefficient of the resistivity A and the Sommerfeld …
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