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Dissertations / Theses on the topic 'Density wave'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Gaspar, Luis Alejandro Ladino. "CHARGE DENSITY WAVE POLARIZATION DYNAMICS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_diss/643.

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We have studied the charge density wave (CDW) repolarization dynamics in blue bronze (K0.3MoO3) by applying symmetric bipolar square-wave voltages of different frequencies to the sample and measuring the changes in infrared transmittance, proportional to CDW strain. The frequency dependence of the electro-transmittance was fit to a modified harmonic oscillator response and the evolution of the parameters as functions of voltage, position, and temperature are discussed. We found that resonance frequencies decrease with distance from the current contacts, indicating that the resulting delays are

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2

Zheng, Liqiu. "Spin density wave phases in semiconductor superlattices." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202500635/.

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3

Aldridge, Christopher John. "Density-wave oscillations in two-phase flows." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260741.

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4

Rai, Ram C. "ELECTRO-OPTICAL STUDIES OF CHARGE-DENSITY-WAVE MATERIALS." UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_diss/427.

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A searched for narrow-band-noise (NBN) modulations of the infrared transmission in blue bronze has been performed. No modulations were observed, giving an upper limits for NBN changes in the absorption coefficient of )2000/(/3.0.andlt;.cmNBN. The implication of these results on proposed CDW properties and NBN mechanisms are discussed. An infrared microscope with a capability of doing both reflectance and transmission measurements has been integrated into the previous electro-transmission system with tunable diode lasers. Electro-optic experiments were done using the microscope for the studies

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5

Dent, ZoeÌˆ Claire. "ULF wave remote sensing of magnetospheric plasma density." Thesis, University of York, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403796.

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6

Ru, Nancy. "Charge density wave formation in rare-earth tritellurides /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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7

Hite, Omar. "Controlling the Charge Density Wave in VSE2 Containing Heterostructures." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23179.

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Exploring the properties of layered materials as a function of thickness has largely been limited to semiconducting materials as thin layers of metallic materials tend to oxidize readily in atmosphere. This makes it challenging to further understand properties such as superconductivity and charge density waves as a function of layer thickness that are unique to metallic compounds. This dissertation discusses a set of materials that use the modulated elemental reactants technique to isolate 1 to 3 layers of VSe2 in a superlattice in order to understand the role of adjace

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8

Goddard, Paul. "Magnetotransport studies of layered metallic systems." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275491.

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9

Franck, Odile. "A closer look at wave-function/density-functional hybrid methods." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066303/document.

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La théorie de la fonctionnelle de la densité (DFT) est une reformulation du problème quantique à N corps où l'énergie de l'état fondamental est exprimée sous la forme d'une fonction de la densité électronique. Dans l'approche de Kohn-Sham de la DFT, seule l'énergie dite d'échange-corrélation décrivant la partie non classique de l'interaction électron-électron nécessite d'être approchée comme une fonctionnelle de la densité. Dans le cadre de la thèse nous nous intéressons à une approximation visant à améliorer la précision et qui consiste à combiner de façon rigoureuse une approximation de type

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10

Reynolds, Eric W. "Laboratory observation of evolution of IEDD-wave-modified equilibrium and density-gradient effects on SMIA wave propagation." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10471.

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Thesis (Ph. D.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains xxviii, 307 p. : ill. Includes abstract. Includes bibliographical references (p. 118-131).

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11

Bellec, Ewen. "Study of charge density wave materials under current by X-ray diffraction." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS437/document.

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Ce manuscrit a pour sujet principal la diffraction par rayons X des matériaux ondes de densité de charges (ODC). Nous avons étudié le cristal quasi-1D NbSe3 ainsi que le quasi-2D TbTe3. Plusieurs grands instruments ont été utilisés pour cette étude, le synchrotron ESRF de Grenoble sur la ligne ID01 ainsi que le laser à électron libre LCLS à Stanford. Premièrement, grâce à la cohérence du faisceau X à LCLS, nous avons pu observer une perte de cohérence transverse dans NbSe3 lors de l’application d’un courant électrique au-dessus d’un certain seuil ainsi qu’une compression longitudinale de l’ODC

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12

Cottet, Didier. "Characterisation of high density substrates for use at millimetre-wave frequencies /." [S.l.] : [s.n.], 2003. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15205.

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13

Strømsvåg, Dag. "Fundamental mechanisms of density wave oscillations and the effect of subcooling." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12583.

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Boiling two-phase flow is found in many industrial applications such as boiling water reactors, two-phase flow heat exchangers and refrigeration systems. The physics of two-phase gas-liquid flow may lead to undesirable system instabilities, and in the literature density wave oscillations (DWO) is reported to be the most commonly observed instability phenomenon. However, the literature alsoprovides two opposing views on what the fundamental mechanism of DWO is. The so-called classical description of DWO focuses on the variation in mixture density as the governing mechanism, and the oscillation

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14

Thomas, Matthew. "3D full-wave modelling of microwave interactions with plasma density fluctuations." Thesis, University of York, 2018. http://etheses.whiterose.ac.uk/20481/.

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The scattering of microwaves by density fluctuations in magnetised plasmas where the inhomogeneity scale length is comparable to the wavelength is not fully understood. Yet microwaves are used extensively in magnetically confined fusion plasmas not only to provide a wealth of information through diagnostics but for heating and current drive. To this end a 3D full-wave finite difference time domain code (EMIT-3D) has been designed to model the quasi-3D Doppler reflectometry data from a novel synthetic aperture microwave imaging diagnostic (SAMI) and to understand the scattering ef- fects of tur

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15

Harris, Victoria Siân. "Creation of nonlinear density gradients for use in internal wave research." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40437.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>"June 2007."<br>Includes bibliographical references.<br>A method was developed to create a nonlinear density gradient in a tank of water. Such gradients are useful for studying internal waves, an ocean phenomenon that plays an important role in climate and ocean circulation. The method was developed by expanding on the two-tank system currently used to create linear density gradients. A mathematical model of the two-tank system was used and a Matlab script was written to solve the model for the requ

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16

Boshoff, Ilana. "Ultrafast electron diffraction on the charge density wave compound 4Hb-TaSe2." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20062.

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Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Ultrafast electron diffraction is a powerful method to study atomic movement in crystals on sub-picosecond timescales. This thesis consists of three parts. In part one the ultrafast electron diffraction machine is described, followed by improvements that were made and techniques that were developed in order to bring the system to state of the art level and enable the acquisition of suffcient data to obtain information on the structural dynamics in crystals. The second part contains a description of the sample which was stud

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17

Yetman, Paul John. "Experimental studies on the size dependence of sliding charge-density wave phenomena." Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279769.

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18

Rubenstein, Richard Alan 1971. "Longitudinal atom optics : measuring the density matrix of a matter wave beam." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85255.

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19

Ren, Yuhang. "Time-resolved optical studies of colossal magnetoresistance and charge -density wave materials." W&M ScholarWorks, 2003. https://scholarworks.wm.edu/etd/1539623421.

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This thesis presents measurements of collective modes and ultrafast carrier relaxation dynamics in charge-density-wave (CDW) conductors and colossal magnetoresistance (CMR) manganites. A femtosecond laser pump pulse excites a broad frequency spectrum of low-energy collective modes and electron-hole pairs thereby changing its optical properties. The low-energy collective excitations and quasiparticle relaxation and recombination processes are monitored by measuring the resulting photoinduced absorption as a function of probe pulse wavelength and time delay.;A general model was developed for the

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20

Heinemann, Tobias. "The dynamics of spiral density waves in turbulent accretion discs." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608944.

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21

Pederiva, Francesco. "Quantum Theory of Non-Homogeneous Phases of Helium." Doctoral thesis, SISSA, 1994. http://hdl.handle.net/20.500.11767/4532.

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of the art in conventional variational theories. We introduce then the Shadow Wave Function (SWF) in its original formulation, and its extension to Local Density Shadow Wave Function (LD-SvVF), developed in order to describe inhomogeneous systems such as liquid-solid coexistence. vVe will then present results on the spontaneous crystallization of a superdense liquid sample using such formalism, on the study of the solid-liquid coexistence and interface in 4He Finally preliminary results on the extension of SWF to 3He.

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22

Edkins, Stephen David. "Visualising the charge and Cooper pair density waves in cuprates." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/9888.

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The study of cuprate high-temperature superconductors has undergone a recent resurgence due to the discovery of charge order in several families of cuprate materials. While its existence is now well established, little is known about its microscopic origins or its relationship to high-temperature superconductivity and the pseudogap. The aim of the research presented in this thesis is to address these questions. In this thesis I will report on the use of spectroscopic-imaging scanning tunnelling microscopy (SI-STM) to visualise the short-ranged charge density wave (CDW) in Bi₂Sr₂CaCu₂O₈₊ₓ and N

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23

Reilly, David James. "Experimental study of shock-driven, variable-density turbulence using a complex interface." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54456.

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The overarching goal of this work is to advance the current knowledge of hydrodynamic instabilities (namely, Richtmyer-Meshkov and Kelvin-Helmholtz instabilities) and associated turbulent mixing phenomena which is important for several emerging technologies and verification/validation of numerical models being developed to study these phenomena. Three experimental campaigns were designed to focus on understanding the evolution of the instability under different impulsive acceleration histories and highlight the impact of initial conditions on the developing turbulent flow environment. The firs

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24

Toh, Justin Sieu-Sung. "Iterative diagonalisation algorithms in plane wave density functional theory with applications to surfaces." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615143.

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25

Rand, Richard J. Kulkarni S. R. "The relationship between the density wave, molecular gas and star formation in M51 /." Diss., Pasadena, Calif. : California Institute of Technology, 1991. http://resolver.caltech.edu/CaltechETD:etd-09162008-105121.

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26

Lee, Allison Marie. "An Experimental and Theoretical Investigation of Internal Wave Kinetic Energy Density in Variable Stratifications." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7737.

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Internal waves are generated in a fluid if the density increases continuously with depth. The variation in density with depth, or stratification, defines the natural frequency of the fluid N. Two common examples of stratified fluids are the ocean and atmosphere; internal waves are generated continuously in both mediums. Although there are many internal wave generation mechanisms, one common and frequently studied method is tidal flow over oceanic bathymetry. If the local natural frequency of the water near the topography is greater than the tidal frequencyω, internal waves will be generated

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27

Ramakrishnan, Sitaram [Verfasser], and Smaalen Sander [Akademischer Betreuer] van. "Charge-density-wave ordering in three-dimensional metallic compounds / Sitaram Ramakrishnan ; Betreuer: Sander van Smaalen." Bayreuth : Universität Bayreuth, 2020. http://d-nb.info/1213348951/34.

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28

Flanagan, Timothy McGuire. "Observations of thermal creep gas flow and dust-density waves in dusty plasma experiments." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/802.

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In laboratory experiments, I study strongly-coupled dusty plasma levitated in a glow-discharge plasma. Dusty plasma is an arrangement of small dust particles in a plasma background of electrons, ions, and neutral gas. The dust particles are negatively charged because they collect electrons and ions from the background plasma. Depending on the experimental setup, the plasma's electric field can help to balance the dust particles against gravity. The high dust charge causes dust particles to repel each other, while confinement forces prevent their escape. The dust particles cannot easily move pa

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29

Yi, Tianyou. "Modeling of dynamical vortex states in charge density waves." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00768237.

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Formation of charge density waves (CDW) is a symmetry breaking phenomenon found in electronic systems, which is particularly common in quasi-one-dimensional conductors. It is widely observed from highly anisotropic materials to isotropic ones like the superconducting pnictides. The CDW is seen as a sinusoidal deformation of coupled electronic density and lattice modulation; it can be also viewed as a crystal of singlet electronic pairs. In the CDW state, the elementary units can be readjusted by absorbing or rejecting pairs of electrons. Such a process should go via topologically nontrivial co

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30

Fumis, Cristiana. "Mechanical Wave Propagation in Civil Engineering Materials." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Mechanical wave propagation in civil engineering materials is important for diﬀerent application ﬁelds, such as thermal conductivity, damage detection and sound transmission (including ﬁlters and sound barriers). A current open challenge is to understand how the chemistry and microstructures of cementitious materials impact the propagation of mechanical waves in them. The challenge is heightened by the fact that cementitious materials are very heterogeneous at the microscale. In this project, molecular and nanoparticle based simulations will be used in order to construct microstructures of ce

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31

Latt, Kyaw Zin. "Manipulation of Molecular Charge Density Waves and Molecular Transport Systems." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1557418915977344.

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32

Feng, Ning-Ning Huang Wei-Ping. "Modeling, simulation and design techniques for high-density complex photonic integrated devices and circuits." *McMaster only, 2005.

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33

Boulet, Antoine. "Density functional theory for Fermi systems with large s-wave scattering length : application to atomic and nuclear physics." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS212/document.

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Dans ce travail de thèse, des théories de type fonctionnelle de la densité sont développées pour des systèmes en interaction forte possédant une longueur de diffusion en onde s, notée as, anormalement grande. Les gaz atomiques ou la matière neutronique sont des exemples physiques de tels systèmes. La théorie des perturbations à N-corps est tout d'abord utilisée pour décrire les systèmes de fermions dilués. Cette approche conduit par exemple à la fonctionnelle de Lee-Yang qui est valide dans une plage de densité très restreinte lorsque la longueur de diffusion en onde s devient grande. Pour éte

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34

Niesert, Manfred [Verfasser]. "Ab initio calculations of spin-wave excitation spectra from time-dependent density-functional theory / Manfred Niesert." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/102156754X/34.

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35

AL, Ismail Marwah I. "On the relationship between compressional wave velocity of saturated porous rocks and density : theory and application." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108912.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 97-98).<br>Understanding the velocity of the compressional waves travelling through rocks is essential for the purposes of applied geophysics in such areas as groundwater and hydrocarbon exploration. The wave velocity is defined theoretically by the Newton-Laplace equation, which relates the wave velocity, V, to the square root of the ratio of the rock's elastic modulus, M, and its density, [r

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36

Mares, Aimee Gail. "Remotely sensed density measurements of volcanic sulfur dioxide plumes using a spectral long wave infrared imager." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Sep%5FMares.pdf.

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Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, September 2002.<br>Thesis advisor(s): Richard C. Olsen, Paul G. Lucey. Includes bibliographical references (p. 123-125). Also available online.

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37

Stoyanova, Alexandrina. "Delocalized and correlated wave functions for excited states in extended systems." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2006. http://irs.ub.rug.nl/ppn/297656074.

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38

Shao, Yongmei. "X-ray scattering study of the critical behavior of the second harmonic in the density wave system 7APCBB." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/32146.

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39

Calderín, L., V. V. Karasiev, and S. B. Trickey. "Kubo–Greenwood electrical conductivity formulation and implementation for projector augmented wave datasets." ELSEVIER SCIENCE BV, 2017. http://hdl.handle.net/10150/626127.

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As the foundation for a new computational implementation, we survey the calculation of the complex electrical conductivity tensor based on the Kubo-Greenwood (KG) formalism (Kubo, 1957; Greenwood, 1958), with emphasis on derivations and technical aspects pertinent to use of projector augmented wave datasets with plane wave basis sets (BIlichl, 1994). New analytical results and a full implementation of the KG approach in an open-source Fortran 90 post-processing code for use with Quantum Espresso (Giannozzi et al., 2009) are presented. Named KGEC ([K]ubo [G]reenwood [E]lectronic [C]onductivity)

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40

Rocha, Matthew Paul. "A high-resolution study of the electronic structure of NbSe3 in normal and charge density wave states with angle resolved photoemission spectroscopy /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?p3113025//.

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Thesis (Ph. D.)--University of Oregon, 2003.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 166-167). Also available for download via the World Wide Web; free to University of Oregon users.

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41

ROMANIN, DAVIDE. "Electron-phonon interactions in low-dimensional carbon systems: superconductivity and charge-density waves." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2872341.

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42

Southern, Rodney George. "Comparison of the obturation density of resilon[TM] using cold lateral condensation and varying continuous wave of condensation techniques." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4683.

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Thesis (M.S.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains vii, 47 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 35-38).

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43

Gerlach, Max Henner [Verfasser], Simon [Gutachter] Trebst, and Achim [Gutachter] Rosch. "Quantum Monte Carlo studies of a metallic spin-density wave transition / Max Henner Gerlach ; Gutachter: Simon Trebst, Achim Rosch." Köln : Universitäts- und Stadtbibliothek Köln, 2017. http://d-nb.info/112720002X/34.

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LePage, Jeffrey Guy. "Projector-augmented wave method calculation of Ga adatom diffusion and local density of states for GaAs and Si surfaces /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487943341528438.

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45

Mahler, Andrew. "The One Electron Basis Set: Challenges in Wavefunction and Electron Density Calculations." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849642/.

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In the exploration of chemical systems through quantum mechanics, accurate treatment of the electron wavefunction, and the related electron density, is fundamental to extracting information concerning properties of a system. This work examines challenges in achieving accurate chemical information through manipulation of the one-electron basis set.

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46

Zhang, Ye. "High cell density perfusion process development for antibody producing Chinese Hamster Ovary cells." Doctoral thesis, KTH, Industriell bioteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-207600.

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Perfusion operation mode is currently under fast expansion in mammalian cell based manufacturing of biopharmaceuticals, not only for labile drug protein but also for stable proteins such as monoclonal antibodies (mAbs). Perfusion mode can advantageously offer a stable cell environment, long-term production with high productivity and consistent product quality. Intensified high cell density culture (HCDC) is certainly one of the most attractive features of a perfusion process due to the high volumetric productivity in a small footprint that it can provide. Advancements in single-use technology

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47

Puikkonen, Panu Tapani. "Development of an Adaptive Equalization Algorithm Using Acoustic Energy Density." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1686.

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Sound pressure equalization of audio signals using digital signal processors has been a subject of ongoing study for many years. The traditional approach is to equalize sound at a point in a listening environment, but because of its specific dependence on the room frequency response between a source and receiver position, this equalization generally causes the spectral response to worsen significantly at other locations in the room. This work presents both a time-invariant and a time-varying implementation of an adaptive acoustic energy density equalization filter for a one-dimensional sound f

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48

Jafari, Seyedfaraz. "Near-field millimeter-wave radio-frequency exposure analysis." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT034.

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Cette thèse vise à déterminer la densité de puissance absorbée (APD) en tenant compte du couplage et des réflexions multiples entre l'antenne et le corps humain, ce qui pose des défis dans l'évaluation de l'APD en raison de leur proximité étroite.La première partie de la thèse explore le concept de mesure de l'APD à l'intérieur d'un fantôme de tissu cutané, en se concentrant spécifiquement sur son application dans les technologies 5G. Cependant, la mesure de l'APD à l'intérieur du fantôme de tissu cutanéest limitée en raison de la faible profondeur de pénétration des champs aux ondes millimétr

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49

Sellam, Mohamed Amine. "Competition between charge density wave and metallic/superconducting states in metastable 1T-TaS2 and 1T-VS2 synthesised under high pressure." Paris 6, 2011. http://www.theses.fr/2011PA066585.

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L’objectif de cette Thèse est une étude de la stabilité des phases d’onde de densité de charge (CDW) et supraconductrice en compétition dans les dichalcogénures lamellaires de métaux de transition. Dans ce but, nous avons employé une technique de synthèse sous haute pression pour induire des modifications de la structure cristalline dans deux composés 1T-TaS2 et 1T-VS2 ayant la même structure 1T (ou de type CdI2) et la même configuration électronique d1. Dans le cas de 1T-TaS2, notre étude de diffraction de rayons X synchrotron et de neutrons sur poudre montre que des conditions de synthèse de

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50

Souza, Valdeci Pereira Mariano de [UNESP]. "Estudo das propriedades elétricas não lineares de polímeros conjugados." Universidade Estadual Paulista (UNESP), 2003. http://hdl.handle.net/11449/91942.

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Made available in DSpace on 2014-06-11T19:25:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-02-18Bitstream added on 2014-06-13T20:27:50Z : No. of bitstreams: 1 souza_vpm_me_rcla.pdf: 535132 bytes, checksum: d3bce6e40a2c0ef0a0bc8cc227fe99dd (MD5)<br>Neste trabalho, apresentamos um estudo experimental das propriedades elétricas não lineares de polímeros conjugados, como por exemplo, curvas I(V) não lineares para baixos valores de campo elétrico aplicado e existência de um campo elétrico de threshold. Investigamos o comportamento elétrico não linear em pastilhas prensadas de poli(3-m

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