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Study of Magnetic Properties of Fe100-xNix Nanostructures Using the Mössbauer Spectroscopy Method

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dc.contributor.author Kadyrzhanov, Kayrat K.
dc.contributor.author Rusakov, Vyacheslav S.
dc.contributor.author Fadeev, Maxim S.
dc.contributor.author Kiseleva, Tatyana Yu.
dc.contributor.author Kozlovskiy, Artem L.
dc.contributor.author Kenzhina, Inesh E.
dc.contributor.author Zdorovets, Maxim V.
dc.date.accessioned 2024-09-17T11:17:16Z
dc.date.available 2024-09-17T11:17:16Z
dc.date.issued 2019
dc.identifier.issn 2079-4991
dc.identifier.other doi:10.3390/nano9050757
dc.identifier.uri http://rep.enu.kz/handle/enu/16507
dc.description.abstract Hyperfine interactions of 57Fe nuclei in Fe100-xNix nanostructures synthesized in polymer ion-track membranes were studied by Mössbauer spectroscopy. The main part of obtained nanostructures was Fe100-xNix nanotubes with bcc structure for 0 ≤ x ≤ 40, and with fcc structure for 50 ≤ x ≤ 90. The length, outside diameter and wall thickness of nanotubes were 12 µm, 400 ± 10 nm and 120 ± 5 nm respectively. For the studied nanotubes a magnetic texture is observedalong their axis. The average value of the angle between the direction of the Fe atom magnetic moment and the nanotubes axis decreases with increasing of Ni concentration for nanotubes with bcc structure from ~50◦ to ~40◦ , and with fcc structure from ~55◦ to ~46◦ . The concentration dependences of the hyperfine parameters of nanotubes Mössbauer spectra are qualitatively consistent with the data for bulk polycrystalline samples. With Ni concentration increasing the average value of the hyperfine magnetic field increases from ~328 kOe to ~335 kOe for the bcc structure and drops to ~303 kOe in the transition to the fcc structure and then decreases to ~290 kOe at x = 90. Replacing the Fe atom with the Ni atom in the nearest environment of Fe atom within nanotubes with bcc structure lead to an increase in the hyperfine magnetic field by “6–9 kOe”, and in tubes with fcc structure—to a decrease in the hyperfine magnetic field by “11–16 kOe”. The changes of the quadrupole shift and hyperfine magnetic field are linearly correlated with the coefficient −(15 ± 5)·10−4 mm/s/kOe. ru
dc.language.iso en ru
dc.publisher Nanomaterials ru
dc.relation.ispartofseries Volume 9;Issue 5
dc.subject magnetic nanostructures ru
dc.subject iron–nickel ru
dc.subject magnetic properties ru
dc.subject Mössbauer spectroscopy ru
dc.title Study of Magnetic Properties of Fe100-xNix Nanostructures Using the Mössbauer Spectroscopy Method ru
dc.type Article ru


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