Abstract :
We report on the synthesis and basic superconducting properties of a completely new Mo2Re3B ternary boride. The crystal structure of Mo2Re3B is characterised by Pmmm space group and the cell parameters: a = 11.626 Å, b = 8.465 Å and c = 8.026 Å. The critical temperature is Tc = 8.5 K, whereas the lower and the upper-critical fields at zero temperature are μ0Hc1(0) = 19.2 mT and μ0Hc2(0) = 3.7 T, respectively. The corresponding Ginzburg–Landau parameter is κ = 16.5 and the superconducting gap is estimated to be 2Δ/kBTc ≈ 3.2.
