Recent ambient and high-pressure studies of iron-based superconductors by UNIPRESS (Editor's Choice)
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The research team of Dr. Singh from NL-6 Laboratory of Superconductors has recently published two interesting publications on iron-based superconductors (FBS); both in an open access journal Materials (Impact factor 3.4).
In the first paper, the effect of cometal addition has been studied and reported for FBS at ambient pressure, where the enhancement of the superconducting transition (Tc) and critical current (Jc) properties were observed due to the improvement of the intergrain connections and pinning centres. This paper is published by M. Manasa, M. Azam, T. Zajarniuk, R. Diduszko, T. Cetner, A. Morawski, A. Wiśniewski, and Shiv J. Singh entitled “Cometal Addition Effect on Superconducting Properties and Granular Behaviours of Polycrystalline FeSe0.5Te0.5” (Materials 16, 2892 (2023) https://doi.org/10.3390/ma16072892).
In the second work, optimization of Fe(Se,Te) physical properties was carried out utilizing the high gas pressure and high-temperature approach (HP-HTS). In comparison to the ambient pressure approach, HP-HTS under optimal growth conditions significantly improved the critical current density, the pinning properties, and the transition temperature. This study demonstrates that the high-pressure synthesis method can be a novel approach to studying FBS materials in order to improve sample quality, achieve further superconducting property enhancements, and advance the development of their magnetic applications, particularly for superconducting wires and tapes. This paper is published by M. Azam, M. Manasa, T. Zajarniuk, R. Diduszko, T. Cetner, A. Morawski, J. Więckowski, A. Wiśniewski, and Shiv J. Singh entitled “High-Pressure Synthesis and the Enhancement of the Superconducting Properties of FeSe0.5Te0.5” (Materials 16, 5358 (2023) https://doi.org/10.3390/ma16155358).
Note that this is EDITOR's CHOICE ARTICLE, selected by Editors to be particularly interesting to readers and important in the respective research area.
Fig. The variation of hexagonal phase (H), room temperature resistivity (ρ300K), Residual resistivity ratio (RRR), the onset transition temperature (Tconset), transition width (ΔT) and critical current density (Jc) with synthesis pressure.
