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Synthesis of the Ni-doped ternary compound Ba(Fe1-xNix)2Se3
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 Title & Authors
Synthesis of the Ni-doped ternary compound Ba(Fe1-xNix)2Se3
Park, Hyeon Beom; Shin, Soohyeon; Jung, Soon-Gil; Hwang, Doyeon; Lee, Hyoyoung; Park, Tuson;
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We report the synthesis of Ni-doped single crystals by using a flux method. X-ray diffraction (XRD) of shows a gradual peak shift with an increase in the nominal Ni-doping rate, x = 0, 0.05, and 0.10, due to a decrease in unit-cell volume. All samples show a spin glass transition, and temperature dependence of magnetic susceptibility shows a negligible change in the spin-glass transition temperature () with Ni concentration x. The temperature dependence of electrical resistivity for shows an insulating behavior, and the resistivity value at 295 K and the activation energy () obtained from the Arrhenius plot decrease with increasing x. These results suggest that the Ni doping can be effectively worked as a dopant for electron charge carriers, but is less efficient in controlling the magnetic property, such as spin glass transition, in the compound.
Ni-doped ;Spin glass;Arrhenius plot;Fe-based superconductor;
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