Synthesis of electron-and hole-doped bulk BaFe2As2 superconductors by mechanical alloying
KS Pervakov, VA Vlasenko - Ceramics International, 2020 - Elsevier
KS Pervakov, VA Vlasenko
Ceramics International, 2020•ElsevierHere, we report the successful synthesis of electron-(Ni) and hole-(K) doped bulk B a F e 2 A
s 2 compounds by means of mechanical alloying (MA) process. The MA technique allows
one to obtain amorphous phase B a F e 2 A s 2 with a homogeneous distribution of doping
atoms at room temperature without continuous heating. We found the optimum time for high-
energy milling is in the range between 1 and 1.5 h. Using pre-synthesised F e A s and N i A
s precursors, we successfully obtained B a F e 2− x N ix A s 2 and B a 1− x K x F e 2 A s 2 …
s 2 compounds by means of mechanical alloying (MA) process. The MA technique allows
one to obtain amorphous phase B a F e 2 A s 2 with a homogeneous distribution of doping
atoms at room temperature without continuous heating. We found the optimum time for high-
energy milling is in the range between 1 and 1.5 h. Using pre-synthesised F e A s and N i A
s precursors, we successfully obtained B a F e 2− x N ix A s 2 and B a 1− x K x F e 2 A s 2 …
Here, we report the successful synthesis of electron-(Ni) and hole-(K) doped bulk B a F e 2 A s 2 compounds by means of mechanical alloying (MA) process. The MA technique allows one to obtain amorphous phase B a F e 2 A s 2 with a homogeneous distribution of doping atoms at room temperature without continuous heating. We found the optimum time for high-energy milling is in the range between 1 and 1.5 h. Using pre-synthesised F e A s and N i A s precursors, we successfully obtained B a F e 2− x N i x A s 2 and B a 1− x K x F e 2 A s 2 superconducting bulk samples after short-range heat treatment. This method can be easily scaled according to industrial needs to provide high-quality bulk superconducting material for wires, trapped-field magnets and other applications.
Elsevier
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