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Dissertations / Theses on the topic 'Ferroelectric domain structure'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Malbec, Aurélien. "Domain formation and evolution in ferroelectric materials." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/15905.

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2

Kim, Kwanlae. "Domain evolution processes in ferroelectric ceramics." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:abd786e3-8461-4e75-ae99-2620d08099b1.

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The aim of this doctoral research is to understand domain evolution processes in ferroelectrics using piezoresponse force microscopy (PFM) and Monte Carlo simulation. The results provide improved knowledge of domain evolution processes, and systematic experimental methods for research on domain evolution. There has been extensive previous research on domain evolution in ferroelectrics, but the research was mainly constrained to simple domain patterns. However, ferroelectric domains tend to form complex patterns that generate low-energy domain configurations. In this research, several methods s

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3

Zhao, Xiaofang, and 赵晓芳. "The influence of defects on the domain structure and properties of ferroelectrics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47031608.

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4

Yavari, Arash Ortiz Michael. "Atomic structure of ferroelectric domain walls, free surfaces and steps /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-12142004-121255.

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5

Hong, Liang, and 洪亮. "On nanoferroelectric domain structures and distributions of defects inferroelectrics." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44138763.

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6

Hong, Liang. "On nanoferroelectric domain structures and distributions of defects in ferroelectrics." Click to view the E-thesis via HKUTO, 2010. http://sunzi.lib.hku.hk/hkuto/record/B44138763.

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7

Maurya, Deepam. "Synthesis-Structure-Property Relationships in Lead-Free Piezoelectric Materials." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/49558.

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Piezoelectric materials find applications in multitude of devices such as sensors, actuators and energy harvesters. However, most of these piezoelectric materials utilize lead-based systems which are becoming serious problem owing to the restrictions imposed by regulatory agencies across the globe. In the functional ceramics community, currently there is no problem more important than to find a replacement for lead-based piezoelectrics used for actuators. The electromechanical properties required for actuators (high piezoelectric constant, high coupling factor, low loss, and high transition te

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8

Jiang, Quanzhong. "Crystal growth and characterisation of mixed niobates for non-linear optical applications." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366805.

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9

Beudon, Didier. "Etude par microscopie electronique a balayage de la structure en domaines ferroelectriques des cristaux de batio : :(3) tires." Nantes, 1987. http://www.theses.fr/1987NANT2053.

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Etude des domaines ferroelectriques par observation optique, puis attaque chimique. Les cristaux n'ayant subis aucune preparation destructrice, sont observes par microscopie electronique a balayage. L'evolution de la structure en domaines ferroelectriques en fonction de la temperature est suivie en temps reel. La visualisation des domaines ferroelectriques est confirmee par decoration avec agcl

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10

Kos, Lukáš. "Studium feroelektrických materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219803.

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This work is focused on the study of perovskite ferroelectric materials group and monitoring changes their dielectric parameters in temperature and frequency dependence Is described scrystallographic systems of barium titanate and their influence on material properties. The measured values are mathematically interpreted using the Curie – Weiss law and discussed about the influence of strontium titanite on important dielectric parameters.

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11

Tsou, Nien-Ti. "Compatible domain structures in ferroelectric single crystals." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:2ef69e2d-ec5a-4e1b-814f-b573b1649a58.

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The aim of the current study is to develop an efficient model which can predict low-energy compatible microstructures in ferroelectric bulks and film devices and their dynamic behaviour. The results are expected to assist in the interpretation of microstructure observations and provide a knowledge of the possible domain arrangements that can be used to design future materials with optimum performance. Several recent models of ferroelectric crystals assume low energy domain configurations. They are mainly based on the idea of fine phase mixtures and average compatibility, and can require intens

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12

Yao, Jianjun. "Structural Investigations of Highly Strictive Materials." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/37669.

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Ferroelectric (piezoelectric) and ferromagnetic materials have extensively permeated in modern industry. (Na1/2Bi1/2)TiO3-BaTiO3 (NBT-x%BT) single crystals and K1/2Na1/2NbO3 (KNN) textured ceramics are top environment-friendly candidates which have potential to replace the commercial lead zirconate titanate or PZT. High magnetostrictive strain (up to 400 ppm) of Fe-xat.%Ga makes this alloys promising alternatives to existing magnetostrictive materials, which commonly either contain costly rare-earth elements or have undesirable mechanical properties for device applications. These systems have

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13

Brown, Paul Thomas. "Optical and thermal control of domain structures in ferroelectric crystals." Thesis, University of Southampton, 1999. https://eprints.soton.ac.uk/351505/.

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This thesis presents the results of investigations into the thermal and optical control of ferroelectric domains within lithium tantalate and strontium barium niobate crystals. The aim of the work was to develop techniques for optically pattering domain inverted structures within ferroelectric crystals. Initial studies involving strontium barium niobate revealed an enhanced temperature sensitivity for transient repoling occurring at room temperatures for this material. This has important consequences for the optical manipulation of domains in this material. Further work indicated that the opti

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14

Hirschinger, Jérôme. "Etude par resonance magnetique nucleaire de la structure et de la dynamique moleculaire des copolymeres p(vf : :(2)-trfe)." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13196.

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La structure et la dynamique moleculaire des copolymeres de difluoroethylene et trifluoroethylene sont etudiees en resonance du proton et du fluor par l'analyse du signal de precision libre, la relaxation spin-reseau dans le repere du laboratoire et a plusieurs angles du champ applique dans le referentiel tournant et par l'effet overhauser transitoire. Les resultats montrent l'existence d'une segregation de phases. Interpretation de la relaxation spin-reseau dans la phase ferroelectrique. Dans la phase paraelectrique, on demontre que la dependance en l'inverse de la racine de la frequence de l

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15

Whyte, Jonathan Robert. "Controlling ferroelectric domain wall injection and motion in mesoscale co-planar capacitor structures." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676501.

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Observations of enhanced conductivity in ferroelectric domain walls have led to many new electronic applications being envisioned, such as domain wall memistors. A crucial prerequisite to realising such devices is the control over the nucleation and position of the domain walls. This thesis presents different methods of exerting this control in mesoscale ferroelectric capacitors. Investigations 'Were carried out using thin single-crystal slices of the uniaxial ferroelectric KTiOP04 (KTP), embedded into a co-planar capacitor structure. Piezoresponse Force Microscopy (PFM) showed the domain nucl

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16

Harnagea, Catalin. "Local piezoelectric response and domain structures in ferroelectric thin films investigated by voltage modulated force microscopy." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963578456.

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17

Neradovskaia, Elizaveta. "Formation de structures de domaines dans des ferroélectriques uniaxiaux : Applications à l'amplification paramétrique optique de grande ouverture." Thesis, Université Côte d'Azur, 2020. http://theses.univ-cotedazur.fr/2020COAZ4012.

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Сette thèse est consacrée à l'étude de structures de domaines dans des ferroélectriques uniaxiaux et à leur application aux amplificateurs paramétriques optiques à grande ouverture.L'étude de l'évolution de la structure de domaines dans les cristaux ferroélectriques est extrêmement importante tant d'un point de vue fondamental qu’appliqué. La microscopie à sonde à balayage offre une opportunité unique pour une investigation locale des processus d'inversion de polarisation, dont les résultats peuvent être utilisés pour optimiser les méthodes classiques d'ingénierie de domaine. L'utilisation de

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18

Ke, Xiaoqin. "Prediction of Interdiffusion Microstructure for High Temperature Coatings and Domain Structures/Piezoelectric Property at Ferroelectric Morphotropic Phase Boundary." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408378729.

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19

Savelev, Evgenii. "Formation de structures de domaines régulières et conversion de longueur d'onde dans le niobate de lithium modifié par échange protonique." Electronic Thesis or Diss., Université Côte d'Azur, 2023. http://www.theses.fr/2023COAZ4141.

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Buts de la recherche: (1) étude de l'évolution de la structure de domaine dans les monocristaux CLN modifiés par la méthode d'échange protonique doux lors de la commutation de la polarisation dans le champ électrique homogène et dans le champ créé par un microscope sonde à balayage, (2) analyse de la génération de seconde harmonique dans les monocristaux CLN dopés au magnésium avec une structure de domaine régulière créée au moyen d'un balayage par faisceau d'électrons.Pour atteindre ces buts, les principaux objectifs suivants ont été formulés:1. Étudier les particularités de la croissance ano

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20

Johann, Florian [Verfasser], Dietrich [Akademischer Betreuer] Hesse, Kathrin [Akademischer Betreuer] Dörr, and Marty [Akademischer Betreuer] Gregg. "Control of ferroelectric domains in epitaxial BiFeO3 thin films and submicron structures / Florian Johann. Betreuer: Dietrich Hesse ; Kathrin Dörr ; Marty Gregg." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2013. http://d-nb.info/1042657149/34.

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21

Cao, Hu. "Phase transformations in highly electrostrictive and magnetostrictive crystals: structural heterogeneity and history dependent phase stability." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28549.

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Ferroelectric and ferromagnetic materials have been extensively studied for potential applications in sensors, actuators and transducers. Highly electrostrictive (1-x)Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)-xPbTiO₃ (PMN-xPT) and highly magnetostrictive Fe-xat.%Ga are two such novel materials. Both materials systems have chemical disorders and structural inhomogeneity on a microscale, giving rise to an interesting diversity of crystal structures and novel macroscopic physical properties, which are dependent on thermal and electrical histories of the crystals. In this thesis, I have to investigated

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22

Yavari, Arash. "Atomic Structure of Ferroelectric Domain Walls, Free Surfaces and Steps." Thesis, 2005. https://thesis.library.caltech.edu/4991/1/Thesis_Arash.pdf.

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The goal of this thesis is to develop a general framework for lattice statics analysis of defects in ferroelectric Perovskites. The techniques presented here are general and can be easily applied to other systems as well. We present all the calculations and numerical examples for two technologically important ferroelectric materials, namely, PbTiO3 and BaTiO3. We use shell potentials, that are derived using quantum mechanics calculations, and analyze three types of defects: (i) 180° and 90° domain walls, (ii) free surfaces and (iii) steps in 180° domain walls. Our formulation assumes that an i

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23

Sandmann, Christian. "Confocal luminescence microscopy study of defect-domain wall interaction in LiNbO₃ and its application to light-induced domain engineering /." Diss., 2004. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3154568.

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24

Scrymgeour, David. "Local structure and shaping of ferroelectric domain walls for photonic applications." 2004. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-721/index.html.

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25

Choudhury, Samrat. "Computer simulations of ferroelectric domain structure and switching using phase-field approach." 2008. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-2659/index.html.

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26

Carka, Dorinamaria. "Non-Linear Analysis of Ferroelastic/Ferroelectric Materials." 2012. http://hdl.handle.net/2152/19499.

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Abstract Ferroelectric/ferroelastic ceramics are used in a range of smart structure applications, such as actuators and sensors due to their electromechanical coupling properties. However, their inherent brittleness makes them susceptible to cracking and understanding their fracture is of prominent importance. A numerical study for a stationary, plane strain crack in a ferroelastic material is performed as part of this work. The stress and strain fields are analyzed using a constitutive law that accounts for the strain saturation, asymmetry in tension versus compression, Bauschinger effects,

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27

Cheng-Ming, Hung, and 洪正銘. "Dielectric, Domain structure, and Optical Properties in High-Curie-Temperature Ferroelectric/Piezoelectric Pb(In1/2Nb1/2)1-xTixO3 Single Crystals." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/91050172643288577825.

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碩士<br>輔仁大學<br>物理學系<br>94<br>Dielectric permittivity, electric hysteresis loops, and domain structures have been measured as functions of temperature, frequency in (001)-cut Pb(In1/2Nb1/2)0.6Ti0.4O3 (PIN-40％PT) and (001)-cut Pb(In1/2Nb1/2)0.7Ti0.3O3 (PIN-30％PT) single crystals. For (001)-cut PIN-40％PT, frequency-dependent dielectric absorption reveals dipolar relaxation processes in the temperature region of 150-300 K which can be described by the Vogel-Fulcher equation. Phase transition from a first-order-type tetragonal/monoclinic to cubic takes place at Tc~486 K. For (001)-cut PIN-30％PT, a

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28

Márton, Pavel. "Modelling of Domain Structures in Ferroelectric Crystals." Doctoral thesis, 2007. http://www.nusl.cz/ntk/nusl-288076.

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29

Wojnar, Charles Stanley. "Exploring the Kinetics of Domain Switching in Ferroelectrics for Structural Applications." Thesis, 2015. https://thesis.library.caltech.edu/8947/37/WojnarThesis_Submit-2015.pdf.

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The complex domain structure in ferroelectrics gives rise to electromechanical coupling, and its evolution (via domain switching) results in a time-dependent (i.e. viscoelastic) response. Although ferroelectrics are used in many technological applications, most do not attempt to exploit the viscoelastic response of ferroelectrics, mainly due to a lack of understanding and accurate models for their description and prediction. Thus, the aim of this thesis research is to gain better understanding of the influence of domain evolution in ferroelectrics on their dynamic mechanical response. There

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30

Khatua, Dipak Kumar. "Insights into the Influence of Electric Field on the Structural Evolution and its Correlation with the Properties in the Lead-based BiScO3-PbTiO3 and the Lead-free Na0.5Bi0.5TiO3 based Piezoceramics." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4121.

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Advanced piezoelectric ceramics are widely used as piezoelectric sensors, transducers, actuators, etc. Among the commercially viable piezoelectric systems, lead zirconate titanate, PbZr1-XTiXO3 (PZT) has dominated the market due to its superior properties and cost effective reproducibility. PZT exhibits enhanced piezoelectric properties in the vicinity of morphotropic phase boundary (MPB). The mechanism(s) associated with the anomalous piezoelectric response in the MPB systems is still a subject of considerable debate. The two contending theories in this regard are based on (i) field induced p

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31

Harnagea, Catalin [Verfasser]. "Local piezoelectric response and domain structures in ferroelectric thin films investigated by voltage modulated force microscopy / von Catalin Harnagea." 2001. http://d-nb.info/963578456/34.

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32

Shih, I. C., and 施怡君. "Domain Structures and Phase Transformations in Relaxor-Based Ferroelectric Crystals (PbMg1/3Nb2/3O3)0.67(PbTiO3)0.33(PMN-33%PT)." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/50184030365352769819.

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碩士<br>輔仁大學<br>物理學系<br>91<br>The micro-domain structures of the relaxor-based ferroelectric crystals (PbMg1/3Nb2/3O3)0.67(PbTiO3)0.33 (PMN-33%PT) have been studied by polarized light microscopy. The experiments have two parts： First, in a <111>-cut PMN-33%PT crystal, a zero field heated (ZFH) experiment and the field cooled-zero field heated (FC-ZFH) experiments have been measured. Second, in a <001>-cut PMN-33%PT crystal is also carried with ZFH with E = 8 kV/cm experiment of successively increasing and decreasing temperature. Finally, the applied field was removed and the zero field heated

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33

Tsai, Chih-Long, and 蔡志龍. "Electric-Field Effects on Dielectric Permittivity and Domain Structures of Relaxor-Based Ferroelectric Crystals (PbMg1/3Nb2/3O3)1-x(PbTiO3)x." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/94970103790044748444.

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碩士<br>輔仁大學<br>物理學系<br>89<br>Dielectric Permittivity and domain structures have been measured as a function of temperature in relaxor-based ferroelectric single crystals (PbMg1/3Nb2/3O3)1-x(PbTiO3)x(PMN-x%PT) for x = 0.32 and 0.33 along [001], [110]and[122] orientations, respectively. As temperature increases, PMN-32%PT and PMN-33%PT undergo successive phase transitions: rhombohedral phase ® coexistence of rhombohedral and tetragonal phases ® tetragonal phase ® coexistence of tetragonal and cubic phases ® cubic phase. A relaxation mechanism which is responsible for the so-called diffuse trans

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34

Shet, Tukaram. "Investigations into the Microstructure Dependent Dielectric, Piezoelectric, Ferroelectric and Non-linear Optical Properties of Sr2Bi4Ti5O18 Ceramics." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3269.

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Ferroelectric materials are very promising for a variety of applications such as high-permittivity capacitors, ferroelectric memories, pyroelctric sensors, piezoelectric and electrostrictive transducers and electro-optic devices, etc. In the area of ferroelectric ceramics, lead-based compounds, which include lead zirconatetitanate (PZT) solid solutions, occupy an important place because of their superior physical properties. However, due to the toxicity of lead, there is an increasing concern over recycling and disposing of the devices made out of these compounds, which has compelled the resea

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35

Shet, Tukaram. "Investigations into the Microstructure Dependent Dielectric, Piezoelectric, Ferroelectric and Non-linear Optical Properties of Sr2Bi4Ti5O18 Ceramics." Thesis, 2017. http://hdl.handle.net/2005/3269.

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Ferroelectric materials are very promising for a variety of applications such as high-permittivity capacitors, ferroelectric memories, pyroelctric sensors, piezoelectric and electrostrictive transducers and electro-optic devices, etc. In the area of ferroelectric ceramics, lead-based compounds, which include lead zirconatetitanate (PZT) solid solutions, occupy an important place because of their superior physical properties. However, due to the toxicity of lead, there is an increasing concern over recycling and disposing of the devices made out of these compounds, which has compelled the resea

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