Study of Magnetic Properties of FeNi Nanostructures Using the Mössbauer Spectroscopy Method.

Hyperfine interactions of Fe nuclei in FeNi nanostructures synthesized in polymer ion-track membranes were studied by Mössbauer spectroscopy. The main part of obtained nanostructures was FeNi 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.