Evolution of the structural and multiferroic properties of PbFe2/3W1/3O3 ceramics upon Mn-doping

Иванов, С. А.; Буш, А. А.; Ritter, C.; Behtin, M.A.; Черепанов, В. М.; Autieri, Carmine; Kvashnin, Yaroslav; Marco, Igor Di; Sanyal, Biplab; Eriksson, Olle; Kumar, Pradeep; Nordblad, Per; Mathieu, Roland

doi:10.1016/j.matchemphys.2016.12.003

Cited by 12 publications

(8 citation statements)

References 74 publications

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“…Triple perovskites containing iron have been widely investigated structurally and magnetically, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] but not many reports have been made on other properties such as the electrical and dielectric properties. 1,2 However, even though the magnetic properties have been thoroughly studied, there are discrepancies in the obtained data.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Kojčinović

Sahu

Hajra

et al. 2022

Mater. Chem. Front.

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Section: Introductionmentioning

confidence: 99%

Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Kojčinović

Sahu

Hajra

et al. 2022

Mater. Chem. Front.

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“…Локальная симметрия отклоняется от идеальной кубической, чем и объясняется формирование сегнетоэлектрических релаксорных свойств [12]. В работе [13] выдвинуто предположение, что упорядочение в системе PFWO может приводить к образованию двух неэквивалентных подрешеток с антипараллельными спинами и формированию ферримагнитного состояния. Диэлектрические характеристики чистого PFWO сильно зависят от условий приготовления, что коррелирует с разупорядоченностью в B-позиции структуры перовскита.…”

Section: Introductionunclassified

Электродинамические характеристики твердых растворов Pb(Fe-=SUB=-1-x-=/SUB=-Sc-=SUB=-x-=/SUB=-)-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=- в широком спектральном диапазоне

Komandin¹,

Porodinkov²,

Chuchupal³

et al. 2018

Физика Твердого Тела

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Методами широкополосной диэлектрической спектроскопии изучено влияние замещения ионов Fe 3+ на ионы Sc 3+ в системе твердых растворов семейства перовскита Pb(Fe 1−x Scx) 2/3 W 1/3 O 3 на функцию диэлектрического отклика в диапазоне частот от 120 Hz до 100 THz (4 • 10 −9 −3 • 10 3 сm −1). Полученные экспериментальные данные проанализированы в рамках многопараметрических моделей дисперсии. Обсуждается эволюция дисперсионных параметров полос поглощения от степени катионного замещения в B-позиции базиса перовскита ABO 3. Работа выполнена при финансовой поддержке Российского фонда фундаментальных исследований, грант № 16-02-00223, синтез керамик и проведение измерений в низкочастотном диапазоне финансировались по проекту № 3.1099.2017/ПЧ гос. задания Министерства образования и науки РФ.

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“…It was observed also that the ordering degree in PFWO is hardly modified by annealing treatments, but is very sensitive to doping [28][29][30][31][32][33][34][35][36] . Investigations of the effects of different additives on the order in the PFWO-based ceramics demonstrated that relatively small alterations in the chemistry can produce very large changes in the thermodynamic stability of the ordered structure and induce significant modifications in the magnetic behavior and dielectric/ferroelectric properties, for example, the influences of the Na, Mg, Ti, Zr, Sc, and Yb dopings [37][38][39][40][41][42][43][44][45][46][47][48] .…”

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confidence: 98%

Structure of Pb(Fe2/3W1/3)O3 single crystals with partial cation order

Иванов

Сташ

Riekehr

et al. 2020

Sci Rep

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Despite intensive studies on the complex perovskite Pb(Fe 2/3 W 1/3)o 3 (PFWO) relaxor, understanding the exact nature of its multifunctional properties has remained a challenge for decades. in this work we report a comprehensive structural study of the PFWO single crystals using a combination of synchrotron X-ray diffraction and high-resolution electron microscopy. The set of {h + ½, k + ½, l + ½} superlattice reflections was observed for the first time based on single-crystal synchrotron X-ray experiments (100-450 K) and transmission electron microscopy investigations, which indicates some kind of B-cation ordering in PFWO which had been thought to be totally disordered. It was found that (1) the crystal structure of PFWO should be described by a partly ordered cubic perovskite (i.e. Fm − 3m), (2) the weak ferromagnetic properties and excess magnetic moment of PFWO can be understood based on non-random distribution of Fe cations between the 4a and 4b sites, and (3) the pb displacement disorder is present in this material and the cations are probably displaced along the <100> directions. The X-ray diffraction results of this investigation show that partial cation ordering indeed exists in PFWO, which makes it necessary to revisit the generally accepted interpretations of the results obtained up to date. In agreement with X-ray diffraction study the main results of TEM study include: (1) a long range order that can be described with the Fm − 3m symmetry is reliably detected, (2) the coherence length of that long range order is in the order of 1-2 nm and (3) no remarkable chemical inhomogeneity is found in the tested PFWO crystal, excluding the possibility of a compositional ordering arising from substitutional defects in the perovskite structure. Pb(Fe 2/3 W 1/3)O 3 (PFWO) belongs to the family of Pb-based multiferroic relaxor ferroelectric complex perovskites (AB ′ 1−x B ′′ x O 3) 1-3. PFWO is formed from simple perovskite ABO 3 with the magnetic ions Fe 3+ (3d 5 , S = 5/2) and the non-magnetic ions W 6+ (5d 0 , S = 0) sharing the B-site of the perovskite-type structure. It is generally accepted that this material exhibits a disordered perovskite structure, where Fe 3+ and W 6+ ions are randomly distributed at the centers of the BO 6 octahedra 4-6. PFWO has been the subject of numerous studies due to its attractive combination of spin and dipole orderings 7-10. An interesting feature of PFWO is associated with the presence of magnetic ions Fe 3+ with a relatively high occupancy of 2/3 on the B-octahedral sites, leading to one of highest magnetic ordering temperatures established in multiferroics materials 6 , with the para-to antiferromagnetic transition occurring around T N = 340-380 K 11-14 , where the magnetic ordering is due to the superexchange interaction between the Fe ions through the O ions. Also, this material is a relaxor ferroelectric with a broad and frequency-dependent dielectric maximum (also called diffuse phase transition) around T max (or T C) = 150-200 K 15,16. Despite the 60-year history of P...

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Evolution of the structural and multiferroic properties of PbFe2/3W1/3O3 ceramics upon Mn-doping

Cited by 12 publications

References 74 publications

Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Электродинамические характеристики твердых растворов Pb(Fe-=SUB=-1-x-=/SUB=-Sc-=SUB=-x-=/SUB=-)-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=- в широком спектральном диапазоне

Structure of Pb(Fe2/3W1/3)O3 single crystals with partial cation order

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Evolution of the structural and multiferroic properties of PbFe2/3W1/3O3 ceramics upon Mn-doping

Cited by 12 publications

References 74 publications

Nanocrystalline triple perovskite compounds A3Fe2BO9(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Nanocrystalline triple perovskite compounds A3Fe2BO9(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Электродинамические характеристики твердых растворов Pb(Fe-=SUB=-1-x-=/SUB=-Sc-=SUB=-x-=/SUB=-)-=SUB=-2/3-=/SUB=-W-=SUB=-1/3-=/SUB=-O-=SUB=-3-=/SUB=- в широком спектральном диапазоне

Structure of Pb(Fe2/3W1/3)O3 single crystals with partial cation order

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Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

Nanocrystalline triple perovskite compounds A₃Fe₂BO₉(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting