Patterned nano-domains in PMN-PT single crystals

Chang, Wei-Yi; Chung, Ching‐Chang; Yuan, Zhongyuan; Chang, Chih‐Hao; Tian, Jian; Viehland, Dwight; Li, Jiefang; Jones, Jacob L.; Jiang, Xiaoning

doi:10.1016/j.actamat.2017.10.016

Cited by 49 publications

(23 citation statements)

References 43 publications

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“…For characterization of ferroelectric domain or domain boundary structures, a variety of techniques have been employed, such as X-ray and neutron diffraction techniques, 15,22 transmission electron microscopy (TEM), 19 polarized light microscopy (PLM), 16,[23][24][25] and PFM. [25][26][27][28] Using PFM, Zeng et al 26 Although PFM is capable of revealing the domain morphologies in nanoscale, and measuring the piezoelectric response of individual domains simultaneously, it is unable to detect the phase symmetry of the ferroelectric domains. Besides, PFM only measures surface layer of the samples.…”

Section: Introductionmentioning

confidence: 99%

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

2019

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Multiple phase coexistence contributes to the extraordinary piezoelectric behavior of (1‐x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (PMN–xPT) near the morphotropic phase boundaries (MPBs). By incorporating an optical path of crossed polarized light (PLM) into the commercialized Piezoelectric Force Microscope (PFM) (named as PLM‐PFM system), in situ domain structure observation from micro‐ to nanoscale, as well as measurement of the piezoelectric behavior for individual domains can be realized. For [001]‐oriented single crystal of 67Pb(Mg1/3Nb2/3)O3‐33PbTiO3 (PMN‐33PT), fine domain boundary structures of rhombohedral (R), tetragonal (T), and monoclinic (M) phases are revealed. Measurements of the electric field‐induced displacement as a function of the applied DC electric field (VDC) are performed for domains with different polarization vectors. Values for the electric field‐induced displacement are in descending order for c‐domains of the M, R, and T phases. For an individual phase of T or M, the displacement increases when the angle between the polarization vector and the applied electric field decreases. The multi‐scale perspective of the domain structures and the corresponding piezoelectric response helps in understanding the ultra‐high piezoelectric performance for PMN‐PT single crystals near MPB.

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Section: Introductionmentioning

confidence: 99%

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

2019

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“…Peak broadening along the (100) zone axis occurs due to a coupling of a gradient in the electric field induced by the nanograted electrodes and the PNR distribution. The PNR distribution was re‐oriented by application of a field gradient, resulting in an excess stored elastic energy . According to Gao et al, the E gradient is larger along [011] and [0

\bar{1}

1].…”

Section: Resultsmentioning

confidence: 99%

“…The PNR distribution was re-oriented by application of a field gradient, resulting in an excess stored elastic energy. 13,17,26,27 According to Gao et al, 13 the E gradient is larger along [011] and [0 − 11]. Consequently, for the (011) zone axis, the gradients of E creates two types of R macro domains, leading to splitting and broadening of multiple parallel peaks.…”

Section: Resultsmentioning

confidence: 99%

“…Previous studies have revealed polar nano‐regions (PNRs) with a high density of twin walls in PMN‐PT, which self‐assemble along different crystallographically equivalent directions into a hierarchical domain structure . Redistribution of PNRs under field within the hierarchical domain structures then enhances the electromechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Self‐assembled patterned CoFe₂O₄‐SrRuO₃ electrodes: Enhanced functional properties by polar nano‐regions reorientation

et al. 2020

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Epitaxial CoFe2O4 (CFO) and SrRuO3 (SRO) nanopillar heterostructures were deposited on Pb(Mg1/3Nb2/3)0.70Ti0.30O3 (PMN‐30PT) single crystal substrates by switch pulsed laser deposition (SPLD). Since the CFO nanopillars are insulating, and the SRO matrix conductive, this self‐assembled nanopillar heterostructure served as a patterned electrode on PMN‐PT, which then enhances the dielectric and piezoelectric constant of the substrate. Cross‐sectional electron microscopy images revealed the formation of a nanopillar heterostructure layer with CFO nanopillars within a SRO matrix. AFM and XRD revealed good topography and epitaxy, indicating a high quality SRO‐CFO self‐assembled nanopillar structure. Using a SRO‐CFO thin film patterned electrode, PMN‐PT was found to have a notably higher (∼30%) dielectric constant with increasing electric field and enhanced transverse broadening in reciprocal spacing mapping (RSM) scans.

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“…Для изучения процесса индуцирования перехода в сегнетоэлектрическое состояние под действием внешнего электрического поля и процесса переключения направления поляризации в этом состоянии мы использовали метод атомно-силовой микроскопии пьезоотклика синхронно с измерениями импеданса. В последние десятилетия метод атомно-силовой микроскопии пьезоотклика (АСМП) [18,19,20] стал важнейшим инструментом для изучения сегнетоэлектрических материалов. Он позволяет получать двухмерные изображения распределения величины и направления поляризации как на чистой поверхности образца, так и через проводящий поверхностный электрод [21,22].…”

Section: методика эксперимента и исследуемые образцыunclassified

Совместное исследование диэлектрического и пьезотклика релаксора Pb(Mg-=SUB=-1/3-=/SUB=-Nb-=SUB=-2/3-=/SUB=-)O-=SUB=-3-=/SUB=- в реальном масштабе времени при приложении электрического поля

Вакуленко¹,

Вахрушев²,

Королева³

2020

Физика Твердого Тела

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The method of the study of the polarization switching processes in ferroelectrics by an external electric field using synchronous measurement of an electric impedance and piezoelectric response is described. Using the developed technique, the switching processes in the electric field-induced ferroelectric phase (FE) of lead magnoniobate are studied. It is shown that, upon the initial occurrence of the SE phase, a multidomain structure with a weak piezoelectric response is formed. A change in the direction of the external field leads to polarization switching, and the switching process passes through an intermediate glassy phase. raining a sample by repeated switching leads to a sharp increase in the piezoelectric response, which can be attributed to the formation of a single-domain state.

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Patterned nano-domains in PMN-PT single crystals

Cited by 49 publications

References 43 publications

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

Self‐assembled patterned CoFe₂O₄‐SrRuO₃ electrodes: Enhanced functional properties by polar nano‐regions reorientation

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Patterned nano-domains in PMN-PT single crystals

Cited by 49 publications

References 43 publications

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

Multi‐scale domain structure observation and piezoelectric responses for [001]‐oriented PMN‐33PT single crystal

Self‐assembled patterned CoFe2O4‐SrRuO3 electrodes: Enhanced functional properties by polar nano‐regions reorientation

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Self‐assembled patterned CoFe₂O₄‐SrRuO₃ electrodes: Enhanced functional properties by polar nano‐regions reorientation