Open AccessВлияние ионного (Ar-=SUP=-+-=/SUP=-) облучения на кластерный магнетизм и магнитные взаимодействия в аморфном сплаве Fe-=SUB=-67-=/SUB=-Cr-=SUB=-18-=/SUB=-B-=SUB=-15-=/SUB=-
Author(s) -
V. D. Okunev,
З. А. Самойленко,
P. Aleshkevych,
H. Szymczak,
A. Szewczyk,
И.А. Антошина
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.10.48248.422
Subject(s) - amorphous solid , irradiation , chromium , absorption (acoustics) , absorption spectroscopy , phase (matter) , analytical chemistry (journal) , spectral line , materials science , cluster (spacecraft) , nuclear magnetic resonance , ion , crystallography , chemistry , physics , metallurgy , optics , nuclear physics , programming language , organic chemistry , chromatography , astronomy , computer science , composite material
Comparing the magnetic resonance absorption spectra with the data on structure and magnetic properties of amorphous Fe67Cr18B15 samples, we have shown that a randomly inhomogeneous medium of amorphous alloy is multiphase. The presence of two types of samples with a different clusterized structure and the use of ion (Ar+) irradiation in the experiment contributed the observation of four main phases with different magnetic properties. The main α-(Fe,Cr) phase contains large clusters D<400 Å in size with a tendency to phase separation of iron (α-Fe) and chromium (α-Cr) under irradiation, which enhances the competitive FM and AFM magnetic interactions and increases the intensity of absorption lines related to α-Fe and α-Cr. In the samples with a developed cluster system, the phase of Fe3B (D<100 Å) interacting with the α-(Fe,Cr) phase is detected in the resonance absorption spectra only when these groupings are isolated. The fourth phase represented by precluster groupings disappears under irradiation.