Polar metastability and an electric-field-induced phase transition in the disordered perovskite Pb(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mg</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Nb</mml:mi></mml

Sommer, R.L.; Yushin, N. K.; Klink, J. J. van der

doi:10.1103/physrevb.48.13230

Cited by 176 publications

(73 citation statements)

References 13 publications

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“…13,14 Especially the results for pure PMN seem to coincide with an E-T phase diagram constructed on the basis of constant-field heating-cooling experiments. 20 The temperature of the minimum threshold field E th,min in the aforementioned articles is located near the freezing and depolarization temperatures, contrary to findings in the present work. While temperature T dp converges toward T m with increasing PT content and ferroelectric nature, the difference between the temperatures of E th,min and T m seems to be invariant possibly due to similar dependence on PT concentration.…”

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confidence: 99%

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Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Peräntie

Hagberg

Uusimäki

et al. 2008

Applied Physics Letters

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Ferroelectric phase inducing threshold electric field E th and its temperature dependence were determined in relaxor ferroelectric 0.87Pb͑Mg 1/3 Nb 2/3 ͒O 3 − 0.13PbTiO 3 ͑PMN-13PT͒ ceramics by measuring dielectric response on a dc field pulse. Evolution of the induced ferroelectricity was observed by means of polarization measurements. An inducing threshold field was found to have a minimum of E th,min = 1.55 kV/ cm at T = −5°C. In contrast to pure PMN, which shows a minimum threshold field near the depolarization temperature, the temperature of the minimum threshold field differs by an amount of ⌬T = 23°C from the depolarization temperature T dp =18°C in PMN-13PT. © 2008 American Institute of Physics. ͓DOI: 10.1063/1.2993345͔In prototype relaxor ferroelectrics Pb͑Mg 1/3 Nb 2/3 O͒ 3 ͑PMN͒, a ferroelectric long-range order can be made stable by adding pure ferroelectric PbTiO 3 ͑PT͒ to form a solid solution of Pb͑Mg 1/3 Nb 2/3 ͒ 1−x Ti x O 3 ͑PMN-xPT͒ 1 and by applying a dc electric field. 2,3 The structure of PMN exhibits average cubic symmetry down to very low temperatures. 4,5 On the other hand, a nanometer scale of 1:1 ordering of Mg 2+ and Nb 5+ cations leads to formation of polar nanoregions. 6 An increase in PT content gradually increases the degree of polar nanoregion evolution, thus favoring the development of a long-range polar order due to a reduced tendency of 1:1 ordering. 1 Eventually this leads to long-range dipolar correlation of the polar regions and onset of a ferroelectric rhombohedral phase. According to recent studies, however, ferroelectric distortion in low-temperature PMN-xPT ͑x Յ 0.2͒ appears to be limited to a short range in the bulk of a crystal with average cubic symmetry, and the polar regions of rhombohedral symmetry are present in a near-surface outer crystal. [7][8][9] This structural complexity makes it difficult to draw exact boundaries between adjacent phases, and it is believed to be a reason for the discovered contradiction in the PMN-PT structure. 9 Furthermore, the low-temperature ferroelectric structure develops into a tetragonal phase through intermediate monoclinic phases in the vicinity of the morphotropic phase boundary. 10,11 Thus, modification of PMN with PT enhances coupling of the polar nanoregions to the applied dc field and consequently decreases the threshold for field inducement.The electric field-induced ferroelectric transition and its temperature dependence on relaxor ferroelectrics are influenced by the type of transition enforcement. 12-14 Mostly heating and cooling with a constant electric field have been used to determine E-T relations of both PMN 14,15 and PMN-PT. 10,16 Nevertheless, another approach with constant temperature and a variable electric field requires a different kind of study in which field-inducing behavior can be viewed separately at individual temperatures.In this letter we study a field-induced ferroelectric transition in PMN-13PT ceramics. In particular, we examine the temperature dependence of the threshold field by measuring the die...

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“…The observed E th,min = 1.55 kV/ cm is in the same range as that observed for single crystal PMN, E th,min = 1.75-2.5 kV/ cm. 13,[19][20][21] Further investigations with different compositions and phase transition enthalpy studies would provide a deeper understanding of this phenomenon. 5.…”

mentioning

confidence: 99%

Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Peräntie

Hagberg

Uusimäki

et al. 2008

Applied Physics Letters

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“…Они вызваны, по всей видимости, индуцированным электрическим полем фазо-вым переходом из сегнетоэлектрического релаксорного в сегнетоэлектрическое состояние и обратным перехо-дом из сегнетоэлектрического в сегнетоэлектрическое релаксорное состояние соответственно. Аналогичные переходы в PMN в поле 2.7 kV/cm происходят при 210 и 220 K [24]. Поскольку при поляризации образцов в них индуцируется сегнетоэлектрическое состояние, на зави-симости tg δ(T ) поляризованного образца наблюдается только один максимум при 345 K (кривая 1 на рис.…”

Section: Discussionunclassified

Сегнетоэлектрические релаксорные свойства образцов системы (1-2x)BiScO-=SUB=-3-=/SUB=-· xPbTiO-=SUB=-3-=/SUB=-· xPbMg-=SUB=-1/3-=/SUB=-Nb-=SUB=-2/3-=/SUB=-O-=SUB=-3-=/SUB=- (0.30≤ x≤0.46)

Bush¹,

Kamentsev²,

Bekhtin³

et al. 2017

Физика Твердого Тела

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На керамических образцах системы твердых растворов (1-2x)BiScO3· xPbTiO3· xPbMg1/3Nb2/3O3 (0.30≤ x≤0.46) со структурой перовскита выполнены рентгенографические, диэлектрические, пьезоэлектрические и пироэлектрические исследования. Найдено, что симметрия твердых растворов изменяется с ростом x от ромбоэдрической (x≤0.38) до тетрагональной (x≥0.42). Образцы с 0.30<x≤0.42 имеют характерные для сегнетоэлектриков-релаксоров свойства, проявляющиеся в наличии широкого пика на температурной зависимости диэлектрической проницаемости при Tmvarepsilon=390-440 K, положение которого смещается с частотой в сторону высоких температур, узких ненасыщенных петель диэлектрического гистерезиса, индуцированного электрическим полем перехода в сегнетоэлектрическое состояние при 318 K. Обнаруженные особенности диэлектрических, пьезо- и пироэлектрических свойств изученных твердых растворов объясняются принадлежностью их к сегнетоэлектрикам-релаксорам. Работа выполнена при поддержке Министерства образования и науки РФ (проект N 3.734.2014/К проектной части госзадания) и РФФИ (грант N 15-02-04647). DOI: 10.21883/FTT.2017.01.43947.431

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“…For the disordered statesm eq is represented in the interiors of hysteresis loops in Figs. (6, 7) by dashed lines with tangents defined by the equilibrium susceptibility (19) and ending at h = ±h AT . Generally χ eq is unobservable quantity as to follow the relation in Eq.…”

Section: Thermodynamics In Finite Fieldmentioning

confidence: 99%

“…It is rather difficult to find from the existing numerical results the possible interrelations between a variety of historydependent phenomena observed in different experimental regimes, see Refs. [17][18][19][20][21][22][23][24][25]. Yet it seems that they should be necessary present as, e. g., the hysteresis loops and ZFC -FC magnetization differences have the common origin.…”

Section: Introductionmentioning

confidence: 99%

Nonergodic thermodynamics of disordered ferromagnets and ferroelectrics

Timonin

2008

Eur. Phys. J. B

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Polar metastability and an electric-field-induced phase transition in the disordered perovskite Pb(Mg1/3Nb

Cited by 176 publications

References 13 publications

Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Сегнетоэлектрические релаксорные свойства образцов системы (1-2x)BiScO-=SUB=-3-=/SUB=-· xPbTiO-=SUB=-3-=/SUB=-· xPbMg-=SUB=-1/3-=/SUB=-Nb-=SUB=-2/3-=/SUB=-O-=SUB=-3-=/SUB=- (0.30≤ x≤0.46)

Nonergodic thermodynamics of disordered ferromagnets and ferroelectrics

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Polar metastability and an electric-field-induced phase transition in the disordered perovskite Pb(Mg1/3Nb

Cited by 176 publications

References 13 publications

Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Temperature characteristics and development of field-induced phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)0.87Ti0.13O3 ceramics

Сегнетоэлектрические релаксорные свойства образцов системы (1-2x)BiScO-=SUB=-3-=/SUB=-&#183; xPbTiO-=SUB=-3-=/SUB=-&#183; xPbMg-=SUB=-1/3-=/SUB=-Nb-=SUB=-2/3-=/SUB=-O-=SUB=-3-=/SUB=- (0.30&le; x&le;0.46)

Nonergodic thermodynamics of disordered ferromagnets and ferroelectrics

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Сегнетоэлектрические релаксорные свойства образцов системы (1-2x)BiScO-=SUB=-3-=/SUB=-· xPbTiO-=SUB=-3-=/SUB=-· xPbMg-=SUB=-1/3-=/SUB=-Nb-=SUB=-2/3-=/SUB=-O-=SUB=-3-=/SUB=- (0.30≤ x≤0.46)