Multiferroics: Promising materials for microelectronics, spintronics, and sensor technique

Zvezdin, A. K.; Логгинов, А. С.; Мешков, Г.; Pyatakov, A. P.

doi:10.3103/s1062873807110263

Cited by 67 publications

(33 citation statements)

References 15 publications

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“…3 The interplay of spin and other electronic or lattice degrees of freedom can induce giant magnetoelectric effects, 4,5 as well as novel types of excitations, 6 paving the way for future applications in sensors, data storage, and spintronics. 7,8 A material which has recently attracted attention is magnetoelectric EuTiO 3 , which show an unusual coupling between dielectric, magnetic, and structural degrees of freedom. It can also be deposited as high quality epitaxial thin films, 9 a prerequisite for envisaging practical application in functional devices.…”

Section: Introductionmentioning

confidence: 99%

EuTiO3magnetic structure studied by neutron powder diffraction and resonant x-ray scattering

et al. 2012

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We combine neutron powder diffraction and x-ray single-crystal magnetic diffraction at the Eu L 2 edge to scrutinize the magnetic motif of the Eu ions in magnetoelectric EuTiO 3 . Our measurements are consistent with an antiferromagnetic G-type pattern with the Eu magnetic moments ordering along the a,b -plane diagonal. Recent reports of a novel transition at 2.75 K with a flop of magnetic moments upon poling the sample in an electric field cannot be confirmed for a nonpoled sample. Our neutron diffraction data do not show any significant change of the structure below the Néel temperature. Magnetoelastic coupling, if present, is therefore expected to be negligible.

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Section: Introductionmentioning

confidence: 99%

EuTiO3magnetic structure studied by neutron powder diffraction and resonant x-ray scattering

et al. 2012

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“…MFM images of the surface of (YSmLuCa) 3 (FeGe) 5 O 12 film with the thickness 3.3 μm for the four values of the probe height above the surface were obtained. If the height is too low, then there are the "rupture" magnetic domains (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Fig. 7 shows nonimplanted and implanted by boron ions B + (YSmCaBi) 3 (FeSi) 5 O 12 films with the thickness 1.25 μm. As we can see, the non-implanted FGFs are quite smooth, and implantation of boron ions in these modes smoothes irregularities on the surface, which decreases height differences of the surface by about 30%.…”

Section: Methodsmentioning

confidence: 99%

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Microanalysis of magnetic structure of yttrium-iron garnet films by using the scanning probe microscopy methods

Synhaivska¹

2016

Semicond. Phys. Quantum Electron. Optoelectron.

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Abstract. In this paper, the features of the microstructure of magnetic domains observed in ferrite-garnet films (FGF) have been presented. The studied FGF with orientation (111) were grown on gallium-gadolinium substrate by using liquid-phase epitaxy. The study of distribution inherent to magnetic domains was carried out using magnetic force microscopy (MFM) with the scanning probe microscope NanoScope IIIa Dimension 3000 TM . In the course of these researches, optimization of the MFM method was carried out to obtain high-quality and correct images of magnetic domains in FGF. Nanorelief and magnetic microstructure of FGF surface were studied, depending on their thickness, on external magnetic field and doses of boron ion implantation. For these objects, it was established that stripe domain structure is characteristic, the period of which depends on the film thickness. The nature of transformation of domain structure depending on thickness is close to that theoretically predictable at low thicknesses (up to 10 µm). Nanorelief of film surfaces is virtually unchanged depending on thickness. An external magnetic field with the magnitude 4 mT causes significant changes in domain configuration and allows to visualize heterogeneity of magnetic structure. Ion implantation leads to a slight smoothing of nanorelief films (roughness of 0.2 nm) and to more accurate displaying the magnetic microstructure, which is associated with processes of structural ordering under ionic bombardment.Keywords: magnetic force microscopy, stripe domain structure, epitaxial yttrium-iron garnet films, ion implantation.

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“…Much of the corresponding research is motivated by the great potential of these materials for non-volatile data storage, sensor applications, and many other areas of technology [1]. However, materials that exhibit multiferroic properties at room temperature, and are thus suitable candidates for future device applications, are still extremely scarce.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of hyperfine interactions in Aurivillius compounds prepared by mechanical activation and solid-state sintering

Mazurek

Jartych

2017

Nukleonika

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Abstract. X-ray diffraction and Mössbauer spectroscopy techniques were used to study the structure and hyperfi ne interactions of multiferroic Aurivillius compounds Bi m+1 Ti 3 Fe m-3 O 3m+3 . Samples were synthesized by two methods, that is, the solid-state sintering at various temperatures and mechanical activation in a high-energy ball mill. The compounds were obtained from a mixture of three polycrystalline powder oxides, that is, TiO 2 , Fe 2 O 3 and Bi 2 O 3 . At room temperature, the Aurivillius compounds are paramagnetic materials with orthorhombic crystal structure. The c lattice parameter of the unit cell depends linearly on the m − number of layers with perovskite--like structure. Based on the Mössbauer studies, it is concluded that the hyperfi ne interactions parameters do not change with m number.

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Multiferroics: Promising materials for microelectronics, spintronics, and sensor technique

Cited by 67 publications

References 15 publications

EuTiO3magnetic structure studied by neutron powder diffraction and resonant x-ray scattering

EuTiO3magnetic structure studied by neutron powder diffraction and resonant x-ray scattering

Microanalysis of magnetic structure of yttrium-iron garnet films by using the scanning probe microscopy methods

A comparative study of hyperfine interactions in Aurivillius compounds prepared by mechanical activation and solid-state sintering

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