Open AccessEffect of cation substitutions in Y-type Ba0.5Sr1.5Me2Fe12O22 hexaferrites on the magnetic phase transitions
Author(s) -
Borislava Georgieva,
Svetoslav Kolev,
Chavdar Ghelev,
K. Krezhov,
Daniela Kovacheva,
Bénédicte Vertruyen,
Raphaël Closset,
Lan Maria Tran,
M. Babij,
A. J. Zaleski,
T. Koutzarova
Publication year - 2022
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 - 10.1088/1742-6596/2240/1/012023
Subject(s) - magnetization , analytical chemistry (journal) , materials science , saturation (graph theory) , condensed matter physics , phase (matter) , chemistry , magnetic field , crystallography , nuclear magnetic resonance , physics , mathematics , organic chemistry , chromatography , quantum mechanics , combinatorics
We investigated the magnetic properties and magnetic phase transition in Y-type Ba 0.5 Sr 1.5 NiMgFe 12 O 22 hexaferrite powder prepared by citrate sol-gel spontaneous combustion. The saturation magnetisation value of 32 emu/g at 4.2 K was lowered to 24 emu/g at 300 K. The magnetisations curves did not saturate even at a magnetic field of 50 kOe for both temperatures - 4.2 K and 300 K. A step-like behaviour appeared in the initial magnetisation curve at 4.2 K. A magnetic phase transformation from a spiral magnetic ordering to a conical spin one was observed at 40 K.