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Low-temperature microstructural studies on superconducting CaFe(2)As(2)
Undoped CaFe(2)As(2) (Ca122) can be stabilized in two slightly different non-superconducting tetragonal phases, PI and PII, through thermal treatments. Upon proper annealing, superconductivity with a T(c) up to 25 K emerges in the samples with an admixture of PI and PII phases. Systematic low-temper...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6478709/ https://www.ncbi.nlm.nih.gov/pubmed/31015499 http://dx.doi.org/10.1038/s41598-019-42660-6 |