Article (Scientific journals)
Ni-substitution effect on the properties of Ba0.5Sr1.5Zn2-xNixFe12O22 powders
Koutzarova, T.; Kolev, S.; Krezhov, K. et al.
2020In Journal of Magnetism and Magnetic Materials, 505, p. 166725
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Keywords :
Magnetic phase transitions; Magnetic properties; Ni-substitution; Sol–gel auto-combustion; Y-type hexaferrites; Barium compounds; Combustion; Iron compounds; Magnetic materials; Magnetic susceptibility; Magnetization; Powders; Sols; Strontium compounds; Zinc compounds; Ac susceptibility; Auto combustion; Auto-combustion methods; Ferromagnetic state; Hexa-ferrites; Magnetization values; Structural and magnetic properties; Nickel compounds
Abstract :
[en] We consider the influence of the magnetic cation (Ni2+) substitution on the structural and magnetic properties of Ba0.5Sr1.5Zn2-xNixFe12O22 (x = 0.8, 1, 1.5) powders. The powders were synthesized by using the citric-acid sol–gel auto-combustion method. Their ac-magnetization was measured in an ac-magnetic field with an amplitude of 10 Oe and a frequency of 1000 Hz to detect any magnetic phase transitions. A strong influence of the Ni-substitution on the magnetic properties was thus observed. A magnetic phase transition from a helicoidal to a ferrimagnetic spin order at 284 K was observed for the sample Ba0.5Sr1.5Zn0.5Ni1.5Fe12O22. The magnetic-phase transition from conical spin order to hellicoidal spin order was registered at 149 K and 177 K for x = 0.8 and x = 1, respectively. Triple hysteresis loops were observed for all samples at 4.2 K, which indicates the presence of two kinds of ferromagnetic states with different magnetization values. © 2020 Elsevier B.V.
Disciplines :
Chemistry
Physics
Author, co-author :
Koutzarova, T.;  Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia, 1784, Bulgaria
Kolev, S.;  Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia, 1784, Bulgaria
Krezhov, K.;  Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia, 1784, Bulgaria
Georgieva, B.;  Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia, 1784, Bulgaria
Ghelev, C.;  Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, Sofia, 1784, Bulgaria
Kovacheva, D.;  Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bld. 11, Sofia, 1113, Bulgaria
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Closset, Raphaël ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Tran, L. M.;  Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Ul. Okólna 2, Wroclaw, 50-422, Poland
Babij, M.;  Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Ul. Okólna 2, Wroclaw, 50-422, Poland
Zaleski, A. J.;  Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Ul. Okólna 2, Wroclaw, 50-422, Poland
Language :
English
Title :
Ni-substitution effect on the properties of Ba0.5Sr1.5Zn2-xNixFe12O22 powders
Publication date :
2020
Journal title :
Journal of Magnetism and Magnetic Materials
ISSN :
0304-8853
eISSN :
1873-4766
Publisher :
Elsevier B.V.
Volume :
505
Pages :
166725
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BAS - Bulgarian Academy of Sciences [BG]
PAN - Polska Akademia Nauk [PL]
WBI - Wallonie-Bruxelles International [BE]
Available on ORBi :
since 13 July 2020

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