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Effects of Ni/Co doping on structural and electronic properties of 122 and 112 families of Eu based iron pnictides

التفاصيل البيبلوغرافية
العنوان: Effects of Ni/Co doping on structural and electronic properties of 122 and 112 families of Eu based iron pnictides
المؤلفون: Joanna Stępień, Damian Rybicki, Marcin Sikora, Zbigniew Bukowski, Michał Babij, Łukasz Gondek, Czesław Kapusta, Tomasz Strączek, Kamil Goc, Danilo Oliveira De Souza
المصدر: Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
بيانات النشر: Nature Portfolio, 2023.
سنة النشر: 2023
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: Abstract Superconductivity in high-temperature superconductors such as cuprates or iron pnictides is typically achieved by hole or electron doping and it is of great interest to understand how doping affects their properties leading to superconductivity. To study it we conducted Fe and As K edge x-ray absorption spectroscopy measurements on several electron doped compounds from the 112 and 122 family of Eu-based iron pnictides. XANES and EXAFS results confirm that dopants are located at expected sites. For both families we found an electron charge redistribution between As and Fe occurring with doping. The changes it caused are stronger in the 112 family and they are bigger at As sites, which indicates that doped charges are predominantly localized on the dopant site. However, the results obtained do not provide clues why Ni doping in 122 family does not lead to occurrence of superconductivity.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2045-2322
Relation: https://doaj.org/toc/2045-2322
DOI: 10.1038/s41598-023-40419-8
URL الوصول: https://doaj.org/article/9c9ba7ea7461459795e204f14e87d656
رقم الأكسشن: edsdoj.9c9ba7ea7461459795e204f14e87d656
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20452322
DOI:10.1038/s41598-023-40419-8