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Superconductivity at 23 K in Pt doped BaFe2As2 single crystals
S. R. Saha, T. Drye, K. Kirshenbaum +3
We report superconductivity in single crystals of the new iron-pnictide system BaFe1.9Pt0.1As2 grown by a self-flux solution method and characterized via x-ray, transport, magnetic…
Effective carrier type and field-dependence of the reduced-Tc superconducting state in SrFe(2-x)Ni(x)As2
N. P. Butch, S. R. Saha, X. H. Zhang +3
Measurements of the Hall effect, thermoelectric power, magnetic susceptibility and upper and lower critical fields were performed on single crystals of SrFe(2-x)Ni(x)As2, an FeAs-b…
Annealing effects on superconductivity in SrFe2-xNixAs2
Shanta R. Saha, Nicholas P. Butch, Kevin Kirshenbaum +1
Superconductivity has been explored in single crystals of the Ni-doped FeAs-compound SrFe2-xNixAs2 grown by self-flux solution method. The antiferromagnetic order associated with t…
Josephson effect between electron-doped and hole-doped iron pnictide single crystals
Xiaohang Zhang, Shanta Saha, Nicholas P. Butch +8
We have observed the Josephson effect in junctions formed between single crystals of SrFe1.74Co0.26As2 and Ba0.23K0.77Fe2As2. I-V curves showed resistively-shunted junction charact…
Superconductivity in the Iron-Pnictide Parent Compound SrFe2As2
K. C. Kirshenbaum, S. R. Saha, N. P. Butch +2
The appearance of superconductivity at ambient pressures in the undoped iron pnictide parent compound SrFe2As2 is studied experimentally using several techniques and approaches to…
Evolution of bulk superconductivity in SrFe2As2 with Ni substitution
S. R. Saha, N. P. Butch, K. Kirshenbaum +1
Single crystals of the Ni-doped FeAs-based superconductor SrFe2-xNixAs2 were grown using a self-flux solution method and characterized via x-ray measurements and low temperature tr…