Effect of Surfaces, Domain Walls and Grain Boundaries on Ferroelectricity in Lead Titanate Using Atomic Scale Simulations PDF Download
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Author: Rakesh Kumar Behera
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The effect of grain boundaries on polarization are calculated for sigma 5 coincident site lattice (310) tilt boundaries in strontium titanate and lead titanate. The reverse twinned structures are found to be energetically more favorable than the regular twins. The presence of the boundary resulted in a local polarization around the boundary (normal and parallel to the boundary), which vanishes away from the boundary. This study also focuses on the challenge to simulate complex ferroelectric structures. As a first step towards achieving the goal, the existing parallel molecular dynamics code was modified to include the core-shell model, thereby allowing complex ferroelectric systems to be simulated.
Author: Rakesh Kumar Behera
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The effect of grain boundaries on polarization are calculated for sigma 5 coincident site lattice (310) tilt boundaries in strontium titanate and lead titanate. The reverse twinned structures are found to be energetically more favorable than the regular twins. The presence of the boundary resulted in a local polarization around the boundary (normal and parallel to the boundary), which vanishes away from the boundary. This study also focuses on the challenge to simulate complex ferroelectric structures. As a first step towards achieving the goal, the existing parallel molecular dynamics code was modified to include the core-shell model, thereby allowing complex ferroelectric systems to be simulated.
Author: Jörg Schröder
Publisher: Springer
ISBN: 3319688839
Category : Technology & Engineering
Languages : en
Pages : 293
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Book Description
The book covers experiments and theory in the fields of ferroelectrics, ferromagnets, ferroelastics, and multiferroics. Topics include experimental preparation and characterization of magnetoelectric multiferroics, the modeling of ferroelectric and ferromagnetic materials, the formation of ferroic microstructures and their continuum-mechanical modeling, computational homogenization, and the algorithmic treatment in the framework of numerical solution strategies.
Author: Miguel Alguero
Publisher: John Wiley & Sons
ISBN: 1118935705
Category : Technology & Engineering
Languages : en
Pages : 984
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Book Description
This two volume set reviews the key issues in processing and characterization of nanoscale ferroelectrics and multiferroics, and provides a comprehensive description of their properties, with an emphasis in differentiating size effects of extrinsic ones like boundary or interface effects. Recently described nanoscale novel phenomena are also addressed. Organized into three parts it addresses key issues in processing (nanostructuring), characterization (of the nanostructured materials) and nanoscale effects. Taking full advantage of the synergies between nanoscale ferroelectrics and multiferroics, the text covers materials nanostructured at all levels, from ceramic technologies like ferroelectric nanopowders, bulk nanostructured ceramics and thick films, and magnetoelectric nanocomposites, to thin films, either polycrystalline layer heterostructures or epitaxial systems, and to nanoscale free standing objects with specific geometries, such as nanowires and tubes at different levels of development. This set is developed from the high level European scientific knowledge platform built within the COST (European Cooperation in Science and Technology) Action on Single and multiphase ferroics and multiferroics with restricted geometries (SIMUFER, ref. MP0904). Chapter contributors have been carefully selected, and have all made major contributions to knowledge of the respective topics, and overall, they are among most respected scientists in the field.
Author: A. S. Sidorkin
Publisher: Cambridge Int Science Publishing
ISBN: 1904602142
Category : Mathematics
Languages : en
Pages : 247
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Book Description
The book examines domain structuring due to the loss of the initial phase stability in materials of finite size. It also covers aspects such as the behaviour of domain boundaries during their interaction with lattice defects, their structure in real ferroelectrically ordered materials, the effect of the lattice potential relief on their movement, and the flexural and translational components of their dynamics in ferroelectric crystals. The contribution of the domain boundaries to the dielectric properties of ferroelectrics and elastic properties of ferroelectric elastomers is evaluated.
Author: Man Ho Leung
Publisher:
ISBN:
Category : Domain structure
Languages : en
Pages : 106
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 652
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Author: Alexander Tagantsev
Publisher: Springer Science & Business Media
ISBN: 1441914226
Category : Science
Languages : en
Pages : 828
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Book Description
At present, the marketplace for professionals, researchers, and graduate students in solid-state physics and materials science lacks a book that presents a comprehensive discussion of ferroelectrics and related materials in a form that is suitable for experimentalists and engineers. This book proposes to present a wide coverage of domain-related issues concerning these materials. This coverage includes selected theoretical topics (which are covered in the existing literature) in addition to a plethora of experimental data which occupies over half of the book. The book presents experimental findings and theoretical understanding of ferroic (non-magnetic) domains developed during the past 60 years. It addresses the situation by looking specifically at bulk crystals and thin films, with a particular focus on recently-developed microelectronic applications and methods for observations of domains with techniques such as scanning force microscopy, polarized light microscopy, scanning optical microscopy, electron microscopy, and surface decorating techniques. "Domains in Ferroic Crystals and Thin Films" covers a large area of material properties and effects connected with static and dynamic properties of domains, which are extremely relevant to materials referred to as ferroics. In other textbooks on solid state physics, one large group of ferroics is customarily covered: those in which magnetic properties play a dominant role. Numerous books are specifically devoted to magnetic ferroics and cover a wide spectrum of magnetic domain phenomena. In contrast, "Domains in Ferroic Crystals and Thin Films" concentrates on domain-related phenomena in nonmagnetic ferroics. These materials are still inadequately represented in solid state physics textbooks and monographs.
Author: Jill Guyonnet
Publisher:
ISBN: 9783319057514
Category : Atomic force microscopy
Languages : en
Pages : 200
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Book Description
Author: Dennis Meier
Publisher: Oxford University Press
ISBN: 0192607413
Category : Science
Languages : en
Pages : 288
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Book Description
Technological evolution and revolution are both driven by the discovery of new functionalities, new materials and the design of yet smaller, faster, and more energy-efficient components. Progress is being made at a breathtaking pace, stimulated by the rapidly growing demand for more powerful and readily available information technology. High-speed internet and data-streaming, home automation, tablets and smartphones are now "necessities" for our everyday lives. Consumer expectations for progressively more data storage and exchange appear to be insatiable. Oxide electronics is a promising and relatively new field that has the potential to trigger major advances in information technology. Oxide interfaces are particularly intriguing. Here, low local symmetry combined with an increased susceptibility to external fields leads to unusual physical properties distinct from those of the homogeneous bulk. In this context, ferroic domain walls have attracted recent attention as a completely new type of oxide interface. In addition to their functional properties, such walls are spatially mobile and can be created, moved, and erased on demand. This unique degree of flexibility enables domain walls to take an active role in future devices and hold a great potential as multifunctional 2D systems for nanoelectronics. With domain walls as reconfigurable electronic 2D components, a new generation of adaptive nano-technology and flexible circuitry becomes possible, that can be altered and upgraded throughout the lifetime of the device. Thus, what started out as fundamental research, at the limit of accessibility, is finally maturing into a promising concept for next-generation technology.
Author: Yoshihiro Ishibashi
Publisher: CRC Press
ISBN: 9782881243936
Category :
Languages : en
Pages : 342
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Book Description
