Effect of Ni and Al substitution on the magnetic properties of Y-type hexaferrite Ba0.5Sr1.5Zn0.5Ni1.5Fe11.92Al0.08O22 powders

Georgieva, Borislava; Kolev, Svetoslav; Krezhov, K.; Ghelev, Chavdar; Kovacheva, Daniela; Tran, Lan Maria; Babij, M.; Zaleski, A. J.; Vertruyen, Bénédicte; Closset, Raphael; Koutzarova, T.

doi:10.1088/1742-6596/1859/1/012067

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…As it is in the range of weak magnetic fields, this could be related to a ferrimagnetic and a helical ordering of spins. Such a behavior was again observed for Ba 0.5 Sr 1.5 Zn 0.5 Ni 1.5 Fe 11.92 Al 0.08 O 22 and Ba 0.5 Sr 1.5 NiMgFe 12 O 22 powders. It is well-known that in Ba 2– x Sr x Zn 2 Fe 12 O 22 , substituting Sr 2+ at x = 1.5 causes a magnetic phase change from a ferromagnetic Fe 3+ spin order in the nonsubstituted samples to a screw spin ordering. , Once impacted by a weak magnetic field, the magnetic system experiences transformations via metamagnetic states, including such between screw spin ordering and conical spin ordering.…”

Section: Magnetic Properties Of Y-hexaferritessupporting

confidence: 63%

“…A popular method for producing hexaferrites is the sol–gel autocombustion, with citric acid often used as fuel and chelator. − The synthesis procedure is as follows: as starting materials, the respective metal nitrates are used; citric acid solution is carefully added to form stable complexes with the metal cations and prevent their precipitation in the solution. As the metal citrates are stable without precipitation at pH = 7–8, an ammonia solution is usually added.…”

Section: Synthesis Techniques Of Y-type Hexaferritesmentioning

confidence: 99%

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Phase Transitions in Magneto-Electric Hexaferrites

et al. 2022

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Hexaferrites have long been the object of extensive studies because of their great possibility for applications�permanent magnets, highdensity recording media, microwave devices, in biomedicine, to name but a few. Lately, many researchers' efforts have been focused on the existence of the magneto-electric effect in some hexaferrite systems and the appealing possibility of them being used as single-phase multiferroic and magnetoelectric materials. As indicated by theoretical analyses, the origin of the large magneto-electric effect can be sought in the strong interaction between the magnetization and the electric polarization that coexist in insulators with noncollinear magnetic structures. The hexaferrites' magnetic structure and, particularly, the specific magnetic spin ordering are the key factors in observing magneto-electric phases in hexaferrites. Some of these phases are metastable, which hampers their direct practical use. However, as the hexaferrites' phase diagrams reveal, chemical doping can be used to prepare a number of noncollinear stable magnetic phases. Since the magneto-electric effect has to do with the magnetic moments ordering, it seems only logical that one should study the cation substitutions' influence on the magnetic phase transition temperature. In this paper, we summarize recent examples of advances in the exploration of magnetic phase transitions in Y-type hexaferrites. In particular, the effect is emphasized by substituting in Y-type hexaferrites the nonmagnetic Me 2+ cations with magnetic ones and of the magnetic Fe 3+ cations with nonmagnetic ones on their magnetic properties and magnetic phase transitions. The work deals with the structural properties of and the magnetic phase transitions in a specific Y-type hexaferrite, namely, Ba(Sr) 2 Me 2 Fe 12 O 22 .

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Section: Magnetic Properties Of Y-hexaferritessupporting

confidence: 63%

Section: Synthesis Techniques Of Y-type Hexaferritesmentioning

confidence: 99%

Phase Transitions in Magneto-Electric Hexaferrites

et al. 2022

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“…Numerous studies on structural, static, and dynamic magnetic properties have been published for Y-type barium ferrites. Their electrical and magnetic properties are easily modified in various methods, the most effective of which are the substitution of metals [11][12][13][14][15][16][17][18] and the appropriate heat treatment [16,[19][20][21][22]. Chandel et al [8] overviewed the structure of Y-type hexagonal ferrite and various synthesis techniques.…”

Section: Introductionmentioning

confidence: 99%

“…On the one hand, researchers focus on these materials as carriers of the magnetoelectric effect [4,[12][13][14][15]20] and consider the possibility of their use as materials for magnetic memory and spintronic. On the other hand, due to their structural, dielectric, and magnetic properties, these materials are candidates for use as absorbers of EM energy in the microwave range [8,11,16,17,[25][26][27] and as substrates for the manufacture of miniature antennas [8,17,23] and attenuators [19,22].…”

Section: Introductionmentioning

confidence: 99%

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

et al. 2022

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The paper presents the results of a study of the phase composition and the main static magnetic characteristics: saturation magnetization, residual magnetization and coercive force of polycrystalline ferroxplana type hexaferrites of the Ba2Ni2-xCuxFe12O22 (0 ≤ x ≤ 2.0) system. These materials have high magnetic permeability and are promising for use as substrates for magnetic antennas and radar absorbing materials. It is shown that thermograms of the initial permeability can be used to quickly assess the presence of impurity magnetic phases in complex oxide ferrimagnets. The permeability and permittivity spectra of textured and non-textured composite samples with the powder of the Ba2NiCuFe12O22 hexaferrite are measured in the microwave frequency range. The radar absorbing properties of the obtained composites are analyzed. It is shown that magnetic texturing leads to an increase in the operating frequency band of an absorber with RL < −10 dB from 6.1 GHz to 8.2 GHz and a deepening of the loss minimum from −21 dB to −27 dB.

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Review on Y-type hexaferrite: Synthesis, characterization and properties

Mohammed,

Kende

et al. 2023

Applied Surface Science Advances

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Effect of Ni and Al substitution on the magnetic properties of Y-type hexaferrite Ba_0.5Sr_1.5Zn_0.5Ni_1.5Fe_11.92Al_0.08O₂₂ powders

Cited by 4 publications

References 11 publications

Phase Transitions in Magneto-Electric Hexaferrites

Phase Transitions in Magneto-Electric Hexaferrites

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

Review on Y-type hexaferrite: Synthesis, characterization and properties

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