A simple method for preparing superconducting FeSe pellets without sealing in evacuated silica tubes

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review



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Superconducting tetragonal FeSe pellets were made by reacting mixtures of elemental Fe and Se powders in argon atmosphere without sealing in evacuated silica tubes. A simple tube furnace has been used. Although the tube's material consisted of quartz, an alumina tube could be used as well. X-ray pure samples with onset of superconducting transition between 8.0K and 8.5K were obtained under specific heat treatment conditions. Residual, unreacted Fe particles could be virtually eliminated through prolonged annealing. A key factor for the synthesis of good samples consists in using processing parameters that minimize Se losses.
Original languageEnglish
JournalCeramics International
Issue number14
Pages (from-to)11474-11480
Publication statusPublished - 2017
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • FeSe, Chalcogenides, Heat treatment, Processing parameters

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