Mössbauer investigations of hyperfine interactions features of 57Fe nuclei in BiFeO3 ferrite

Sobolev, A. V.; Presniakov, Igor A.; Rusakov, V. S.; Belik, Alexei А.; Matsnev, M. E.; Gorchakov, Dmitry; Glazkova, Iana S.

doi:10.1063/1.4898617

Cited by 21 publications

(18 citation statements)

References 12 publications

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“…7) contain only the quadrupole splitting lines. These results are inconsistent with the data obtained in the Mössbauer studies of macrocrystalline samples of BiFeO 3 (see, for example, [24,25] and references therein). The Mössbauer spectra obtained in these studies are described by two Zeeman sextuplets, which agree well with the experimental data.…”

Section: 78contrasting

confidence: 86%

“…These two sex tuplets correspond to Fe 3+ ions located in two different crystallographic positions in the BFO structure [20]. At the same time, in [25,26] (see also references cited therein), it was found that the Mössbauer spectra of ceramic samples of BiFe 1 -x Cr x O 3 [26], Bi n + 1 Fe n ⎯ 3 Ti 3 O 3n + 3 [27], BiFe 1 -x Ni x O 3 [28], and Bi 1 -x Sr x FeO 3 [29] with x = 0 contain one Zeeman sextuplet that corresponds to the state of iron ions Fe 3+ . In the Mössbauer studies of the BFO films, it was established that the experimental Mössbauer spectra of Bi 1 -x Pr x FeO 3 films are well described by two Zee man sextuplets corresponding to the antiferromag netic state of Fe 3+ ions [30].…”

Section: 78mentioning

confidence: 99%

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Investigation of the properties of BiFeO3/intermediate-layer structures fabricated by magnetron sputtering

et al. 2015

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The properties of BiFeO 3 /intermediate layer/substrate structures fabricated by radio frequency magnetron sputtering at low temperatures (450°C) and by deposition on substrates and intermediate layers between the substrate and the BiFeO 3 film have been investigated. In the structures, glass substrates or com mercial Pt/Ti/SiO 2 /Si(001) substrates have been used, and intermediate layers have been prepared from L1 0 FePt or Pt films. Intermediate layers of Pt and L1 0 FePt have the (111) and (001) textures, respectively, induced by rapid thermal annealing. It has been revealed that the deposition on the commercial substrates leads to the formation of BiFeO 3 isotropic films that have a large surface roughness and consist of grains ~200 nm in size with the BiFeO 3 perovskite structure. In the case of the deposition of a BiFeO 3 film on a Pt(111) intermediate layer, the BiFeO 3 phase is suppressed. The deposition on an intermediate layer of the L1 0 FePt film with the (001) texture results in the formation of a single phase BiFeO 3 film with the (001) texture and the perovskite structure, which (as compared to the BiFeO 3 films grown on the commercial substrate) has a less pronounced roughness, smaller grain sizes, and significantly better ferroelectric properties.

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Section: 78contrasting

confidence: 86%

Section: 78mentioning

confidence: 99%

Investigation of the properties of BiFeO3/intermediate-layer structures fabricated by magnetron sputtering

et al. 2015

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“…Такой дублет соответствует парамагнитной фазе, то же значение T N = 643 K было получено в других работах (см. например [10,39]). Высокое квадрупольное расщепление (QS = 0.427 mm/s) указывает на большие градиенты Расчитанные из мёссбауэровских спектров твердых растворов xBiFeO 3 −(1 − x)SrTiO 3 амплитуды первых и шестых линий в случае зеемановских секстиплетов первых линий в случае дублетов (A), ширины линий (G), параметры сверхтонких взаимодействий: изомерные сдвиги (IS), квадрупольные расщепления (QS) и эффективные магнитные поля (H eff ), а также относительные интенсивности компонент линий (дублетов и секстиплетов) в % от общей площади линий.…”

Section: результаты экспериментов и обсуждениеunclassified

“…В области концентраций BiFeO 3 от 0.9 до 1.0 МС состоят из двух квадрупольных дублетов, наблюдаемых на фоне зеемановского секстиплета с ширинами линий чуть больше естественной. При этом интенсивности линий секстиплетов становятся несимметричными относительно нуля скоростей, аналогично показанным для BiFeO 3 в [30,31,35,39,40]. Мёссбауэровские спектры образцов с x = 0 и x = 0.9 (рис.…”

Section: результаты экспериментов и обсуждениеunclassified

“…1) были разложены на два секстиплета и два дублета). Рассчитанные из МС величины параметров СТВ для секстиплетов, приведенные в таблице, находятся в хорошем согласии с опубликованными данными и являются типичными для BiFeO 3 (см., например [30,31,35,39,40] и ссылки там). Следовательно, эти два секстиплета в области 0.9 ≤ x ≤ 1.0 однозначно принадлежат фазе BiFeO 3 .…”

Section: результаты экспериментов и обсуждениеunclassified

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Мёссбауэровские исследования свойств твердых растворов xBiFeO-=SUB=-3-=/SUB=--(1-x)SrTiO-=SUB=-3-=/SUB=- (x=0.2/1.0; Delta x=0.1)

Kamzin¹,

Smirnova²

2020

Физика Твердого Тела

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Systematic Mössbauer studies of the magnetic structure and phase transition in the xBiFeO3- (1-x) SrTiO3 solid solution, where x varies from 0 to 0.8 with a step of 0.1, have been carried out. The multiferroic BiFeO3 was modified by the introduction of SrTiO3 perovskite, and solid solutions xBiFeO3- (1-x) SrTiO3 were obtained, which simultaneously possess ferrimagnetic and ferroelectric properties at room temperature. In the obtained xBiFeO3- (1-x) SrTiO3 systems, according to X-ray diffraction studies, there are no additional phases, while the Mössbauer data indicate the presence of mullinite (Bi2Fe4O9) with a SrTiO3 content in the solid solution from x = 1.0 to x = 0.8. The Mössbauer spectra of the xBiFe3- (1-x) SrTi3 system at room temperature show that with a decrease in the amount of BiFeO3 in the solid solution, the magnetic hyperfine field values decrease and the absorption line widths increase due to the weakening of the magnetic exchange interaction. For compositions with x <0.5, the Mössbauer spectra indicate the paramagnetic state of the solid solution. Based on the dependence of the Zeeman line intensity on the BiFeO3 content in the xBiFeO3- (1-x) SrTiO3 solid solution, it was found that the transition to the paramagnetic state of the xBiFeO3- (1-x) SrTiO3 system at room temperature occurs near the value x = 0.4 (between x = 0.3 and x = 0.5).

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The Effect of Cr-Doping on the Structure, Dielectric and Magnetic Properties of BiFeO3 and Pb(Fe0.5Sb0.5)O3 Multiferroics

Raevskaya

Кубрин

Pushkarev³

et al. 2018

Springer Proceedings in Physics

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Mössbauer investigations of hyperfine interactions features of 57Fe nuclei in BiFeO3 ferrite

Cited by 21 publications

References 12 publications

Investigation of the properties of BiFeO3/intermediate-layer structures fabricated by magnetron sputtering

Investigation of the properties of BiFeO3/intermediate-layer structures fabricated by magnetron sputtering

Мёссбауэровские исследования свойств твердых растворов xBiFeO-=SUB=-3-=/SUB=--(1-x)SrTiO-=SUB=-3-=/SUB=- (x=0.2/1.0; Delta x=0.1)

The Effect of Cr-Doping on the Structure, Dielectric and Magnetic Properties of BiFeO3 and Pb(Fe0.5Sb0.5)O3 Multiferroics

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