Open AccessEffect of Ni and Al substitution on the magnetic properties of Y-type hexaferrite Ba0.5Sr1.5Zn0.5Ni1.5Fe11.92Al0.08O22 powders
Author(s) -
Borislava Georgieva,
Svetoslav Kolev,
K. Krezhov,
Chavdar Ghelev,
Daniela Kovacheva,
Lan Maria Tran,
M. Babij,
A. J. Zaleski,
Bénédicte Vertruyen,
Raphaël Closset,
T. Koutzarova
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1859/1/012067
Subject(s) - magnetization , annealing (glass) , magnetic field , materials science , condensed matter physics , saturation (graph theory) , analytical chemistry (journal) , antiferromagnetism , chemistry , crystallography , nuclear magnetic resonance , metallurgy , physics , mathematics , chromatography , quantum mechanics , combinatorics
The effect is reported of substituting the non-magnetic Zn 2+ cations with magnetic Ni 2+ cations, and of the magnetic Fe 3+ cations with non-magnetic Al 3+ cations in Ba 0.5 Sr 1.5 Zn 0.5 Ni 1.5 Fe 11.92 Al 0.08 O 22 on the resulting magnetic properties. The Y-type hexaferrite powders were synthesized by citric acid sol-gel auto-combustion, followed by appropriate thermal annealing. The saturation magnetization values ( M s ) in a magnetic field of 50 kOe were 36 emu/g and 30 emu/g at 4.2 K and 300 K, respectively. The zero-field-cooled (ZFC) and field-cooled (FC) magnetization vs. temperature (4.2 – 300 K) were measured in dc magnetic fields of 50 Oe, 100 Oe and 500 Oe. The changes resulting from the dissimilar cationic substitutions were identified and discussed.