Effective Field Approach to Phase Transitions and Some Applications to Ferroelectrics


Book Description

This book begins by introducing the effective field approach, the simplest approach to phase transitions. It provides an intuitive approximation to the physics of such diverse phenomena as liquid-vapor transitions, ferromagnetism, superconductivity, order-disorder in alloys, ferroelectricity, superfluidity and ferroelasticity. The connection between the effective field approach and Landau's theory is stressed. The main coverage is devoted to specific applications of the effective field concept to ferroelectric systems, both hydrogen bonded ferroelectrics, like those in the TGS family, and oxide ferroelectrics, like pure and mixed perovskites. Sample Chapter(s). Chapter 1: An Overview (310 KB). Contents: Mean Field Approach to Cooperative Phenomena; Some Applications to Ferroelectrics: 1970OCo1991; Some Applications to Ferroelectrics: 1991OCo1997; Some Applications to Ferroelectrics: 1998OCo2005. Readership: Materials scientists, physicists and chemists in academy and industry; final year undergraduates and graduates in materials science."




Effective Field Approach to Phase Transitions and Some Applications to Ferroelectrics


Book Description

The first half of the book presents the effective field approach, which is certainly the simplest approach to investigate cooperative phenomena and the accompanying phase transitions. It provides a common, intuitive approximation to the physics of such diverse phenomena as liquid-vapor transitions, ferromagnetism, superconductivity, order-disorder in alloys, ferroelectricity, superfluidity and ferroelasticity. The connection between the effective field approach and Landau's phenomenological theory is stressed. The latter half is devoted to some specific applications of the effective field concept to ferroelectric systems. Contents:Mean Field Approach to Cooperative Phenomena:An OverviewLiquid-Vapour TransitionsFerromagnetic TransitionsSuperconductive TransitionsOrder-Disorder Transitions in AlloysFerroelectric TransitionsSuperfluid TransitionsFerroelastic TransitionsLandau Theory and Effective Field Approach. Role of FluctuationsEquation of State and the Scaling FunctionAppendix: Effective Field Approach to Superconductors and SuperfluidsSome Application to Ferroelectric Systems:Behaviour at T ≊ Tc of Pure Ferroelectric Systems with Second-Order Phase TransitionEffects of Dipolar Impurities in Small AmountsMixed Ferro-Antiferroelectric Systems and other Mixed Ferroelectric SystemsComments on “Ferroelectricity in Zinc Cadmium Telluride“ Relaxation Phenomena near TcPolarization Reversal in Ferroelectric SystemsPolarization Switching by Domain Wall MotionSwitching Current Pulse ShapeElementary Excitations in Ferroelectrics: Dipole WavesLow Temperature Behaviour of FerroelectricsLogarithmic Corrections Readership: Condensed matter physicists, statistical physicists and physical chemists.




Effective Field Approach to Phase Transitions and Some Applications to Ferroelectrics


Book Description

Based on a graduate course on phase transitions at the Universidad Autonoma de Madrid, in 1989. Presents a simple explanation of the effective field approach to investigate phase transitions, a well established procedure. Applies the method to a few phase transitions, mostly solid state, with special attention to ferroelectric systems. Acidic paper. Annotation copyrighted by Book News, Inc., Portland, OR




Effective Field Approach To Phase Transitions And Some Applications To Ferroelectrics (2nd Edition)


Book Description

This book begins by introducing the effective field approach, the simplest approach to phase transitions. It provides an intuitive approximation to the physics of such diverse phenomena as liquid-vapor transitions, ferromagnetism, superconductivity, order-disorder in alloys, ferroelectricity, superfluidity and ferroelasticity. The connection between the effective field approach and Landau's theory is stressed.The main coverage is devoted to specific applications of the effective field concept to ferroelectric systems, both hydrogen bonded ferroelectrics, like those in the TGS family, and oxide ferroelectrics, like pure and mixed perovskites.




Ferroelectrics


Book Description

Ferroelectric materials exhibit a wide spectrum of functional properties, including switchable polarization, piezoelectricity, high non-linear optical activity, pyroelectricity, and non-linear dielectric behaviour. These properties are crucial for application in electronic devices such as sensors, microactuators, infrared detectors, microwave phase filters and, non-volatile memories. This unique combination of properties of ferroelectric materials has attracted researchers and engineers for a long time. This book reviews a wide range of diverse topics related to the phenomenon of ferroelectricity (in the bulk as well as thin film form) and provides a forum for scientists, engineers, and students working in this field. The present book containing 24 chapters is a result of contributions of experts from international scientific community working in different aspects of ferroelectricity related to experimental and theoretical work aimed at the understanding of ferroelectricity and their utilization in devices. It provides an up-to-date insightful coverage to the recent advances in the synthesis, characterization, functional properties and potential device applications in specialized areas.







Principles of Phase Structures in Particle Physics


Book Description

10(-10) sec after the big bang, when the universe cooled down to the order of 1015 Kelvin, the electroweak phase transition led to a spontaneous breaking of the symmetry between electromagnetic and weak interactions. 10(-6) sec later, at a temperature of the order of tera degrees, the QCD transition confined the free quarks and gluons to mesons and baryons in the hadronic phase of the present world. This book is about the analytical and numerical methods used to investigate these transitions within the framework of quantum field theory at finite temperature in a continuum formulation and on the lattice. The topics covered include the renormalization group approach in a perturbative and non-perturbative realization, dimensional reduction, asymptotic and convergent expansions in quantities such as strong and weak couplings, high temperatures, and small momenta. One particular case revolves around computer-aided generations of high-order hopping parameter series.




Acta Physica Polonica


Book Description

General physics, solid state physics, applied physics.




Ferroelectric Thin Films


Book Description

Ferroelectric thin films continue to attract much attention due to their developing applications in memory devices, FeRAM, infrared sensors, piezoelectric sensors and actuators. This book, aimed at students, researchers and developers, gives detailed information about the basic properties of these materials and the associated device physics. The contributing authors are acknowledged experts in the field.