Magnetic and magnetoelectric properties of M-type substitution hexaferrites TSc x Fe12 − x O19 (T = Ba, Sr)

Balbashov, A. M.; Ivanov, V. Yu.; Mukhin, A. A.; Исхакова, Л. Д.; Popov, Yu. F.; Vorob’ev, G. P.; Voronchikhina, M. E.

doi:10.1134/s0021364015070048

Cited by 33 publications

(17 citation statements)

References 17 publications

(27 reference statements)

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“…The third sample has a higher T * than the samples investigated in Ref. [12]. However, following Vegard's rule, an increasing amount of the bigger Sc on the Fe site should result in increasing lattice constants, which is indeed confirmed by our results.…”

Section: A High-resolution Experimentssupporting

confidence: 88%

“…The approach of explaining the electric polarization by the inverse Dzyaloshinskii-Moriya effect is purely qualitative and does not account for the internal magnetic structure of the blocks composed of different sublattices. To explain the fact that the field dependence of polarization for Y -type hexaferrites is odd, while for Z-type it is even and for M-type it may be of both kinds, one has to make additional assumptions concerning the different types of domain boundaries [10,12,13]. It is shown in our work that conical magnetic structures in M-type Sr-Sc hexaferrites do exist for certain Sc concentrations.…”

Section: Discussionmentioning

confidence: 85%

“…The ingot was synthesized by the crucibleless zone melting method with radiation (light) heating as described in Ref. [12]. We used ground polycrystalline samples with a mass of between 1.5 and 2.5 g, which were filled into vanadium sample containers with a diameter of 3 mm.…”

Section: Methodsmentioning

confidence: 99%

“…1) thus determining a specific variation of exchange interactions and magnetic anisotropy resulting in a decrease of spontaneous magnetization and a change in the magnetic structure. Recently, the magnetic and magnetoelectric properties of BaSc x Fe 12−x O 19 and SrSc x Fe 12−x O 19 (x = 1.3-1.7) hexaferrites have been studied [12,13], which has revealed the phase transitions from the high-temperature ferrimagnetic phase to the conical magnetic structure. Furthermore, even the Sr compounds possess a remarkable electric polarization that has not been reported before.…”

Section: Fig 1 (A)mentioning

confidence: 99%

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Conical magnetic structures in multiferroic SrScxFe12−xO19 hexaferrites derived from powder neutron diffraction

et al. 2018

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We present a systematic powder neutron diffraction study on Sr-based M-type hexaferrites SrSc x Fe 12−x O 19 using high-resolution and high-flux instruments. We have derived the magnetic configurations for the compounds with x = 1.4, 1.6, and 1.8 at room temperature and at 2 K revealing a ferrimagnetic structure and a complex conical magnetic structure, respectively, where the latter is decomposed into the axial ferrimagnetic and the helicoidally modulated component in the hexagonal a-b plane. Our temperature-and composition-dependent investigation reveals that doping nonmagnetic Sc into this system reinforces the frustration and pushes the transition between the two ordered phases toward higher temperatures. The continuous opening of the spin cone suggests a smooth transition from an easy-axis toward an easy-plane anisotropy with decreasing temperature, which can be reinforced by increasing Sc content.

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Section: A High-resolution Experimentssupporting

confidence: 88%

Section: Discussionmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Fig 1 (A)mentioning

confidence: 99%

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Conical magnetic structures in multiferroic SrScxFe12−xO19 hexaferrites derived from powder neutron diffraction

et al. 2018

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“…For example, substituting Fe 3+ with (Co 2+ /Ti 4+ ) may increase the resistivity by up to five orders of magnitude to 4.36 Â 10 10 X cm for SrCo 2 Ti 2 Fe 8 0 19 [18]. Small addition of Mg or Al also helps to increase the resistivity [8,13,19]. M-type hexaferrite ceramics prepared by polymer precursor technics also have an enhanced resistivity [14][15][16].…”

Section: Resultsmentioning

confidence: 99%