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Superconductivity (SC) is one of the most intriguing physical phenomena in nature. Nucleation of SC has long been considered highly unfavorable if not impossible near ferromagnetism, in low dimensionality and, above all, out of non-superconductor. Here we report observation of SC with 𝑇C near 4 K in Ni/Bi bilayers that defies all known paradigms of superconductivity, where neither ferromagnetic Ni film nor rhombohedra Bi film is superconducting in isolation. This highly unusual SC is independent of the growth order (Ni/Bi or Bi/Ni), but highly sensitive to the constituent layer thicknesses. Most importantly, the SC, distinctively non-𝑠 pairing, is triggered from, but does not occur at, the Bi/Ni interface. Using point contact Andreev reflection, we show evidences that the unique SC, naturally compatible with magnetism, is triplet p-wave pairing.

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The effect of Mg content on the evolution behavior of inclusions in the steel plates with Mg deoxidation was investigated based on the experimental studies and thermodynamic calculations. Simulating welding process and Charpy impact test were also carried out to evaluate the Heat Affected Zone (HAZ) toughness of steel plates. The typical inclusions found in the steels were the complex inclusions comprising central oxide and peripheral MnS. With the increase of Mg content in the steel samples from 0 to 27, 38 and 99 ppm, the phase of central oxide inclusions changed sequentially from Al 2 O 3 to (Mg-Ti-O), and MgO, which is consistent with the thermodynamic calculation results. Furthermore, the size of inclusions decreases and the number density of inclusions increases with the increase of Mg content. The HAZ toughness of steel plates after welding with heat input of 400 kJ cm À1 has been greatly improved by inclusion control with Mg deoxidation.