Hyperfine interactions in some Aurivillius Bi+1Ti3Fe−3O3+3 compounds

Jartych, E.; Mazurek, Mariusz; Lisińska-Czekaj, Agata; Czekaj, Dionizy

doi:10.1016/j.jmmm.2009.08.022

Cited by 33 publications

(29 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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: 62%

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

Mazurek

Jartych

2017

Nukleonika

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 62%

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

Mazurek

Jartych

2017

Nukleonika

Self Cite

View full text Add to dashboard Cite

show abstract

“…All samples showed a regular Aurivillius structure with c/2 around 3.2 nm, indicating the seven-layer structure [22] (Figure 2a-d). In addition, the lattice parameter c showed a slight decrease with the increase of x, suggesting the successful substitution of Co for Fe inside the lattices.…”

Section: High-resolution Transmission Electron Microscopymentioning

confidence: 98%

“…In addition, Chen et al revealed the formation mechanism of Bi5Fe0.9Co0.1Ti3O15 nanosheets [21]. Apparently in the layered structure, FM properties can also be affected by the structure of the fundamental building blocks (here mainly referring to the layer number) [22]. Thus, it is worth considering what will happen if similarly using this substitution strategy in such layerstructured oxides with even higher n numbers.…”

Section: X-ray Diffractionmentioning

confidence: 99%

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

Lei

Chen

et al. 2017

Crystals

View full text Add to dashboard Cite

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.

show abstract

“…It is commonly known that Aurivillius phases of Bi 4 Ti 3 O 12 -BiFeO 3 (BFTO) system, combine ferroelectric, semiconducting and ferromagnetic properties and are potentially attractive for producing high-performance ceramics for information processing and information storage applications [1,2]. Among the different ferromagnetic compounds of BFTO system Bi 6 Fe 2 Ti 3 O 18 was found to be interesting because of the high dielectric transition temperature (T=805°C) and quadratic magnetoelectric nature [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of Processing Conditions on Crystal Structure of Bi6Fe2Ti3O18 Ceramics

Lisińska-Czekaj

Lubina

Czekaj

et al. 2016

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

Aim of the present research was to apply a solid state reaction route to fabricate Aurivillius-type ceramics described with the formula Bi6Fe2Ti3O18 (BFTO) and reveal the influence of processing conditions on its crystal structure. Pressureless sintering in ambient air was employed and the sintering temperatures were 850 and 1080 °C. It was found that the fabricated BFTO ceramics were multiphase ones. They consisted of two Bim+1Fem-3Ti3O3m+3 phases, namely the phase with m=5 (i.e. the stoichiometric phase) and m=4 (i.e. the phase with a reduced number of layers in the slab). Detailed X-ray diffraction patterns analysis showed that both phases adopted the same orthorhombic structure described with Fmm2 (42) space group. The ratio of weight fractions of the constituent phases (m=5): (m=4) was ~30:70.

show abstract

Hyperfine interactions in some Aurivillius Bi+1Ti3Fe−3O3+3 compounds

Cited by 33 publications

References 18 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

Influence of Processing Conditions on Crystal Structure of Bi6Fe2Ti3O18 Ceramics

Contact Info

Product

Resources

About