Evolution of the magnetic hyperfine field profiles in an ion-irradiated Fe60Al40 film measured by nuclear resonant reflectivity

Nuclear resonant reflectivity (NRR) from an Fe60Al40 film was measured using synchrotron radiation at several grazing angles near the critical angle of total external reflection. Using laterally resolved measurements after irradiation with 20 keV Ne+ ions of gradually varying fluence of 0-3.0 × 1014...

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Veröffentlicht in:Journal of synchrotron radiation. - 1994. - 28(2021), Pt 5 vom: 01. Sept., Seite 1535-1543
1. Verfasser: Andreeva, Marina (VerfasserIn)
Weitere Verfasser: Smekhova, Alevtina, Baulin, Roman, Repchenko, Yurii, Bali, Rantej, Schmitz-Antoniak, Carolin, Wende, Heiko, Sergueev, Ilya, Schlage, Kai, Wille, Hans Christian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of synchrotron radiation
Schlagworte:Journal Article Mössbauer spectroscopy X-ray reflectivity hyperfine interactions ion irradiation magnetic depth profiles magnetic patterning nuclear resonant scattering
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520 |a Nuclear resonant reflectivity (NRR) from an Fe60Al40 film was measured using synchrotron radiation at several grazing angles near the critical angle of total external reflection. Using laterally resolved measurements after irradiation with 20 keV Ne+ ions of gradually varying fluence of 0-3.0 × 1014 ions cm-2, the progressive creation of the ferromagnetic A2 phase with increasing ion fluence was confirmed. The observed depth selectivity of the method has been explained by application of the standing wave approach. From the time spectra of the nuclear resonant scattering in several reflection directions the depth profiles for different hyperfine fields were extracted. The results show that the highest magnetic hyperfine fields (∼18-23 T) are initially created in the central part of the film and partially at the bottom interface with the SiO2 substrate. The evolution of the ferromagnetic onset, commencing at a fixed depth within the film and propagating towards the interfaces, has been directly observed. At higher fluence (3.0 × 1014 ions cm-2) the depth distribution of the ferromagnetic fractions became more homogeneous across the film depth, in accordance with previous results 
650 4 |a Journal Article 
650 4 |a Mössbauer spectroscopy 
650 4 |a X-ray reflectivity 
650 4 |a hyperfine interactions 
650 4 |a ion irradiation 
650 4 |a magnetic depth profiles 
650 4 |a magnetic patterning 
650 4 |a nuclear resonant scattering 
700 1 |a Smekhova, Alevtina  |e verfasserin  |4 aut 
700 1 |a Baulin, Roman  |e verfasserin  |4 aut 
700 1 |a Repchenko, Yurii  |e verfasserin  |4 aut 
700 1 |a Bali, Rantej  |e verfasserin  |4 aut 
700 1 |a Schmitz-Antoniak, Carolin  |e verfasserin  |4 aut 
700 1 |a Wende, Heiko  |e verfasserin  |4 aut 
700 1 |a Sergueev, Ilya  |e verfasserin  |4 aut 
700 1 |a Schlage, Kai  |e verfasserin  |4 aut 
700 1 |a Wille, Hans Christian  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Journal of synchrotron radiation  |d 1994  |g 28(2021), Pt 5 vom: 01. Sept., Seite 1535-1543  |w (DE-627)NLM09824129X  |x 1600-5775  |7 nnns 
773 1 8 |g volume:28  |g year:2021  |g number:Pt 5  |g day:01  |g month:09  |g pages:1535-1543 
856 4 0 |u http://dx.doi.org/10.1107/S1600577521007694  |3 Volltext 
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