Antiferromagnetic spin glass-like behavior in sintered multiferroic Aurivillius Bim+1Ti3Fem−3O3m+3 compounds

Jartych, E.; Pikula, T.; Mazurek, Mariusz; Lisińska-Czekaj, Agata; Czekaj, Dionizy; Gąska, Karolina; Przewoźnik, J.; Kapusta, Cz.; Surowiec, Z.

doi:10.1016/j.jmmm.2013.04.046

Cited by 87 publications

(73 citation statements)

References 17 publications

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“…The results of XRD and MS studies of the Aurivillius compounds for m = 48 obtained by solid-state sintering and mechanical activation have already been reported in details in our earlier works [4][5][6][7][8][9][10]. It was shown that only Bi 5 Ti 3 FeO 15 compound is a single-phase material, while the other Aurivillius compounds (m = 5-8) contain adjacent phases (with m ± 1) besides the main phase [6,11].…”

Section: Resultsmentioning

confidence: 66%

“…It was shown that only Bi 5 Ti 3 FeO 15 compound is a single-phase material, while the other Aurivillius compounds (m = 5-8) contain adjacent phases (with m ± 1) besides the main phase [6,11]. All the studied compounds have orthorhombic unit cell.…”

Section: Resultsmentioning

confidence: 94%

“…All MS spectra were numerically fi tted assuming two 57 Fe positions in the structure of the Aurivillius compound (the structural model was described elsewhere in [5,11]). Iron ion may be located at the Ti site, that is, position inside the oxygen octahedron (B site in perovskite ABO 3 structure).…”

Section: Resultsmentioning

confidence: 99%

“…Iron ion may be located at the Ti site, that is, position inside the oxygen octahedron (B site in perovskite ABO 3 structure). Two non-equivalent octahedral positions of Fe 3+ ions may be distinguished in the structure of the Aurivillius compound, that is, in the centre of the inner B1 oxygen octahedron within the perovskite-like block and in the centre of the outer B2 octahedron adjacent to the fl uorite-like {(Bi 2 O 2 ) 2+ } layer [5,11]. Thus, the two doublets, D1 and D2, fi tted to the MS spectra corresponded to the two Fe sites mentioned above.…”

Section: Resultsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

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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“…In fact, B-site substitution in a seven-layer Bi 8 Fe 4 Ti 3 O 24 (7-BFTO) has never been done before, and no room-temperature FM was found in this material. Only a few previous works can be found with focuses on synthesis, crystalline structure and magnetic property studies of pure 7-BFTO, and most of them suggested the material's AFM behavior at room temperature [23][24][25]. Figure 1 shows the X-ray diffraction spectra of such as-prepared 7-BFCT ceramics.…”

Section: Introductionmentioning

confidence: 99%

Cobalt-Substituted Seven-Layer Aurivillius Bi8Fe4Ti3O24 Ceramics: Enhanced Ferromagnetism and Ferroelectricity

Lei

Chen

et al. 2017

Crystals

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Abstract:In this work, Aurivillius-phase Bi 8 Fe 4-x Co x Ti 3 O 24 (7-BFCT, 0 ≤ x ≤ 0.4) powders and ceramics were successfully prepared by the combination of citrate combustion and hot-press methods. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) indicate a successful synthesis of the pure phase of the 7-BFCT ceramics, and all the samples showed a good seven-layer structure of the Aurivillius phase. Partial Fe substituted by Co was found to be effective to enhance both ferromagnetic and ferroelectric properties at room temperature, and the largest remnant magnetization (2M r ) of~0.69 emu/g was revealed at the composition of x = 0.4. Zero field cooling and field cooling (ZFC-FC) magnetization measurement confirmed its magnetic transition occurring at a high temperature of~750 K. Correspondingly, the enhanced ferroelectric properties of such Co-substituted ceramics were also investigated.

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Retention Characteristics of Five‐Layered Aurivillus Films With Large Polarization

Song

Yang

Wang

et al. 2017

Physica Rapid Research Ltrs

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The value of 2Pr (twice the polarization at zero electric field) in the five‐layered Aurivillus film Bi6Fe2Ti3O18 is greater than 50 μC cm−2, which is almost an order of magnitude higher than that of the bulk (4 μC cm−2). Moreover, the well‐defined hysteresis loop of this film can persist at the measurement frequency of 100 kHz, indicating the ultra‐fast switching speed of such a domain. The frequency dependence of the coercive field obeys a power‐law form, Ectrue(ftrue)=bold-italicsfbold-italicd/bold-italicα, indicating that its domain switching kinetics are influenced by the motion of the domain wall. The polarization of the Bi6Fe2Ti3O18 thin film remains essentially constant at a waiting time of up to 2 × 104 s, and is independent of the applied electric field. The switchable polarization loss is 32% after 9 × 1010 read/write switching cycles at a frequency of 1 MHz. This change in the switchable polarization is discussed in terms of the aggregation of oxygen vacancies in the film.

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Antiferromagnetic spin glass-like behavior in sintered multiferroic Aurivillius Bim+1Ti3Fem−3O3m+3 compounds

Cited by 87 publications

References 17 publications

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

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

Cobalt-Substituted Seven-Layer Aurivillius Bi8Fe4Ti3O24 Ceramics: Enhanced Ferromagnetism and Ferroelectricity

Retention Characteristics of Five‐Layered Aurivillus Films With Large Polarization

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