Swift heavy ion irradiation-induced amorphous iron and Fe-Si oxide phases in metallic Fe-57 layer vacuum deposited on surface of SiO2/Si
- NázevTitle
- Swift heavy ion irradiation-induced amorphous iron and Fe-Si oxide phases in metallic Fe-57 layer vacuum deposited on surface of SiO2/SiSwift heavy ion irradiation-induced amorphous iron and Fe-Si oxide phases in metallic Fe-57 layer vacuum deposited on surface of SiO2/Si
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- E. Kuzmann, K. Nomura, S. Stichleutner, A. Nakanishi, Ľ. Krupa
- Klíčová slovaKeywords
- low temperature, mossbauer-spectroscopy, thin-films, nanoparticles, interface, superparamagnetism, transition, particle, magnetite, features
- DOIDOI
- 10.1557/s43578-022-00767-z
- Časopis / citaceJournal / citation
- Journal of Materials Research (2023) · ISSN 0884-2914
- RokYear
- 2023
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 3 (OpenAlex)
- Plný text (open access)Full text (open access)
- https://link.springer.com/content/pdf/10.1557/s43578-022-00767-z.pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
Fe-57 conversion electron Mossbauer (CEM) spectroscopy, SEM and magnetization measurements were used to study the effect of swift heavy ion irradiation on metallic Fe-57 (10 nm) thin layer vacuum deposited onto SiO2/Si. About 85% of the total iron content of the surface layer detected by CEM was present as metallic, crystalline alpha iron before the irradiation, while upon irradiation with 160 MeV Xe ions, with a fluence of 5 x 10(13) ion cm(-2), similar to 21% was converted to amorphous iron and similar to 47% to silicon-containing iron oxide phases. The presence of pure iron in the amorphous state was evidenced by CEM in agreement with magnetization measurements. Temperature dependence of CEM measurements and the FC/ZFC curves of the irradiated deposit indicated superparamagnetic nature of the iron-silicon-oxide phases. The results are discussed in terms of the thermal spike model for the formation of the amorphous iron phase that can be essential for the formation of silicon-iron-oxides.
Fe-57 conversion electron Mossbauer (CEM) spectroscopy, SEM and magnetization measurements were used to study the effect of swift heavy ion irradiation on metallic Fe-57 (10 nm) thin layer vacuum deposited onto SiO2/Si. About 85% of the total iron content of the surface layer detected by CEM was present as metallic, crystalline alpha iron before the irradiation, while upon irradiation with 160 MeV Xe ions, with a fluence of 5 x 10(13) ion cm(-2), similar to 21% was converted to amorphous iron and similar to 47% to silicon-containing iron oxide phases. The presence of pure iron in the amorphous state was evidenced by CEM in agreement with magnetization measurements. Temperature dependence of CEM measurements and the FC/ZFC curves of the irradiated deposit indicated superparamagnetic nature of the iron-silicon-oxide phases. The results are discussed in terms of the thermal spike model for the formation of the amorphous iron phase that can be essential for the formation of silicon-iron-oxides.