"Glassy" Low Temperature Thermal Properties in Crystalline Solids
Author : Bernard David Nathan
Publisher :
Page : 260 pages
File Size : 44,20 MB
Release : 1976
Category : Crystals
ISBN :
Author : Bernard David Nathan
Publisher :
Page : 260 pages
File Size : 44,20 MB
Release : 1976
Category : Crystals
ISBN :
Author : William A. Phillips
Publisher : Springer Science & Business Media
Page : 179 pages
File Size : 24,77 MB
Release : 2012-12-06
Category : Science
ISBN : 3642815340
It is now ten years since it was first convincingly shown that below 1 K the ther mal conductivity and the heat capacity of amorphous solids behave in a way which is strikingly different to that of crystalline solids. Since that time there has been a wide variety of experimental and theoretical studies which have not only defined and clarified the low temperature problem more closely, but have also linked these differences between amorphous and crystalline solids to those suggested by older acoustic and thermal experiments (extending up to 100 K). The interest in this somewhat restricted branch of physics lies to a considerable extent in the fact that the differences were so unexpected. It might be thought that as the tempera ture, probing frequency, or more generally the energy decreases, a continuum de scription in which structural differences between glass and crystal are concealed should become more accurate. In a sense this is true, but it appears that there exists in an amorphous solid a large density of additional excitations which have no counterpart in normal crystals. This book presents a survey of the wide range of experimental investigations of these low energy excitations, together with a re view of the various theoretical models put forward to explain their existence and nature.
Author : Miguel A Ramos
Publisher : World Scientific
Page : 505 pages
File Size : 10,73 MB
Release : 2022-08-11
Category : Science
ISBN : 1800612591
This book, edited by M. A. Ramos and contributed by several reputed physicists in the field, presents a timely review on low-temperature thermal and vibrational properties of glasses, and of disordered solids in general. In 1971, the seminal work of Zeller and Pohl was published, which triggered this relevant research field in condensed matter physics. Hence, this book also commemorates about 50 years of that highlight with a comprehensive, updated review.In brief, glasses (firstly genuine amorphous solids but later on followed by different disordered crystals) were found to universally exhibit low-temperature properties (specific heat, thermal conductivity, acoustic and dielectric attenuation, etc.) unexpectedly very similar among them — and very different from those of their crystalline counterparts.These universal 'anomalies' of glasses and other disordered solids remain very controversial topics in condensed matter physics. They have been addressed exhaustively in this book, through many updated experimental data, a survey of most relevant models and theories, as well as by computational simulations.
Author : Thea B. van Oosten
Publisher : Getty Publications
Page : 322 pages
File Size : 39,21 MB
Release : 2022-08-30
Category : Art
ISBN : 1606067680
A practical, comprehensive resource on the complex behaviors of plastics written expressly for conservation and cultural heritage professionals. Almost every museum in the world is confronted with plastics in their collections. Research initiatives and knowledge concerning the conservation of heritage objects made of plastics have proliferated over the last twenty-five years, necessitating this up-to-date, comprehensive resource. Intended as a highly practical guide for the conservation community, this authoritative book offers information essential to understanding plastics, polymers, and rubber/elastomers and their behaviors in the cultural heritage context. Numerous graphs, diagrams, and illustrations allow readers to compare the mechanical, physical, thermal, and optical properties of these substances during conservation. Aimed at the hands-on museum practitioner, this book will assist professionals in choosing the appropriate methods and materials for preserving and treating plastic objects. Complementing the main chapters, fifty-six illustrated “fact sheets” summarize, at a glance, the properties of those plastics most commonly found in museum collections. Six informative case studies present real-world examples of current conservation approaches to works of art and design made of plastics and rubber/elastomers. Under the expert authorship of Thea B. van Oosten, conservation scientist, educator, and internationally regarded authority on the behavior and properties of plastics, this instructive volume is destined to become an invaluable resource for the field.
Author : Keiji Tanaka
Publisher : Springer Nature
Page : 300 pages
File Size : 39,31 MB
Release : 2021-07-01
Category : Technology & Engineering
ISBN : 3030695980
This book provides introductory, comprehensive, and concise descriptions of amorphous chalcogenide semiconductors and related materials. It includes comparative portraits of the chalcogenide and related materials including amorphous hydrogenated Si, oxide and halide glasses, and organic polymers. It also describes effects of non-equilibrium disorder, in comparison with those in crystalline semiconductors.
Author : Robert E. Newnham
Publisher : Oxford University Press
Page : 391 pages
File Size : 33,63 MB
Release : 2005
Category : Science
ISBN : 0198520751
Crystals are sometimes called 'Flowers of the Mineral Kingdom'. In addition to their great beauty, crystals and other textured materials are enormously useful in electronics, optics, acoustics and many other engineering applications. This richly illustrated text describes the underlying principles of crystal physics and chemistry, covering a wide range of topics and illustrating numerous applications in many fields of engineering using the most important materials today. Tensors, matrices, symmetry and structure-property relationships form the main subjects of the book. While tensors and matrices provide the mathematical framework for understanding anisotropy, on which the physical and chemical properties of crystals and textured materials often depend, atomistic arguments are also needed to quantify the property coefficients in various directions. The atomistic arguments are partly based on symmetry and partly on the basic physics and chemistry of materials. After introducing the point groups appropriate for single crystals, textured materials and ordered magnetic structures, the directional properties of many different materials are described: linear and nonlinear elasticity, piezoelectricity and electrostriction, magnetic phenomena, diffusion and other transport properties, and both primary and secondary ferroic behavior. With crystal optics (its roots in classical mineralogy) having become an important component of the information age, nonlinear optics is described along with the piexo-optics, magneto-optics, and analogous linear and nonlinear acoustic wave phenomena. Enantiomorphism, optical activity, and chemical anisotropy are discussed in the final chapters of the book.
Author : Jaroslav Šesták
Publisher : Springer Science & Business Media
Page : 392 pages
File Size : 15,1 MB
Release : 2010-10-26
Category : Technology & Engineering
ISBN : 904812882X
Provides a summary of non-equilibrium glassy and amorphous structures and their macro- and microscopic thermal properties. The book contains a carefully selected works of fourteen internationally recognized scientists involving the advances of the physics and chemistry of the glassy and amorphous states.
Author :
Publisher :
Page : 1006 pages
File Size : 16,25 MB
Release : 1977
Category : Aeronautics
ISBN :
Author :
Publisher :
Page : 640 pages
File Size : 31,39 MB
Release : 1977
Category :
ISBN :
Author : United States. Energy Research and Development Administration. Technical Information Center
Publisher :
Page : 1680 pages
File Size : 48,23 MB
Release : 1977
Category : Force and energy
ISBN :