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JOURNALS // Fizika Tverdogo Tela // Archive

Fizika Tverdogo Tela, 2024 Volume 66, Issue 8, Pages 1301–1305 (Mi ftt10392)

Metals

Investigation of ultrathin magnetic fields on $^{57}$Fe nuclei in Nd$_2$Fe$_{14}$B and Fe compounds with metals

M. M. Huseynov

Daghestan Institute of Physics after Amirkhanov, Makhachkala, Russia

Abstract: Gamma-resonance studies of ultrathin magnetic fields on $^{57}$Fe nuclei in multicomponent compounds of iron with metals and a neodymium magnet of the Nd$_2$Fe$_{14}$B composition have been carried out. It is shown that ultrathin magnetic fields $H_n$ are observed on $^{57}$Fe iron nuclei in all studied compounds, the largest of which falls on $^{57}$Fe nuclei in Ni$_{45}$Fe$_{45}$B$_{10}$, which significantly exceeds the $^{57}$Fe field in a neodymium magnet, which also has the highest magnetic induction among known permanent magnets. A qualitative analysis of the mechanism of formation of ultrathin magnetic fields on iron nuclei in the studied compounds is proposed.

Keywords: magnetism, permanent magnets, metals, gamma resonance, neodymium magnet, nuclear spectrum, ultrathin magnetic fields, isomer shift.

Received: 25.04.2024
Revised: 25.04.2024
Accepted: 26.06.2024

DOI: 10.61011/PSS.2024.08.59044.104



© Steklov Math. Inst. of RAS, 2026