Mixed Crystals
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Author | : A. I. Kitaigorodsky |
Publisher | : Springer Science & Business Media |
Total Pages | : 403 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 364281672X |
The two-word title of this book can only give an indication about its content and approach to the subject it deals with. In the course of time, the term has gradually become somewhat blurred. The reason is easy to see: similar problems are now more and more frequently studied by different branches of natural science. The term "mixed crystals" has acquired specific connotations in physics, chemistry, biology, and geology. One and the same term can now serve as a name for things which are either not quite the same or sometimes quite different. And this is precisely what happened to the two words in the title of the book. One of them, the term "crystal", for which crystallography had an un ambiguous definition, is now employed by biologists to describe the structure of cell membranes and by chemists who use it to denote degrees of polymer crystallinity. "Crystal" has thus become a broad term that can help describe any solid, or just a condensed state of a substance, if the solid has a suf ficient degree of order in the arrangement of its components. But the book is called "~lixed Crystals". The other word in its title, the adjective "mixed", has also developed several meanings. It is now thought ap plicable to both homogeneous and heterogeneous systems, that is, to crystals composed of different molecules and also to solids that are a mixture of crys tals with different structures.
Author | : R.J. Elliott |
Publisher | : Elsevier |
Total Pages | : 454 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 0444598251 |
``Optical Properties of Mixed Crystals'' is concerned with the description of optical processes in substitutionally disordered semiconductors and insulators which can be basically described through their elementary excitations. Two of the chapters relate to the phonon response including the effect of side bands on electron transitions. Two relate to electronic spectra, one on photoelectron spectroscopy and the other on excitons. A further chapter deals with magnons in magnetic crystals and a final chapter is related to fluctuations and band edge effects.Each chapter deals with a specific class of excitation, but the book makes it clear that the fundamental structure of the excitation spectra, including band formation, band tailing and localisation is common to every type of excitation. The volume shows how some basic concepts and ideas can be widely applied to bring coherence and understanding to a diverse area of solid state physics. It therefore provides an up-to-date summary of the experimental and theoretical situation in an important and rapidly developing field and brings together for the first time a discussion of the many different types of spectra which appear in mixed crystals.
Author | : Miquel Àngel Cuevas-Diarte |
Publisher | : Springer Nature |
Total Pages | : 336 |
Release | : 2021-05-22 |
Genre | : Science |
ISBN | : 3030687279 |
This book focuses on mixed crystals formed by molecular substances. The emphasis lies on the elucidation of the structural and thermodynamic properties of two-component systems. Thanks to the fact that the research efforts have been directed to a number of families of chemically coherent substances, rather than to a collection of isolated systems, the knowledge of mixed crystals has substantially increased. This is reflected by the discovery of several empirical relationships between thermodynamic properties, crystallographic properties, and also between thermodynamic mixing properties and exothermodynamic parameters, such as the structural mismatch between the components of the binary systems. This book is a benchmark for material scientists and a unique starting point for anyone interested in mixed crystals.
Author | : Edward Tiekink |
Publisher | : Walter de Gruyter GmbH & Co KG |
Total Pages | : 421 |
Release | : 2017-11-20 |
Genre | : Science |
ISBN | : 3110463792 |
In this volume, contributions covering the theoretical and practical aspects of multicomponent crystals provide a timely and contemporary overview of the state-of-the art of this vital aspect of crystal engineering/materials science. With a solid foundation in fundamentals, multi-component crystals can be formed, for example, to enhance pharmaceutical properties of drugs, for the specific control of optical responses to external stimuli and to assemble molecules to allow chemical reactions that are generally intractable following conventional methods. Contents Pharmaceutical co-crystals: crystal engineering and applications Pharmaceutical multi-component crystals: improving the efficacy of anti-tuberculous agents Qualitative and quantitative crystal engineering of multi-functional co-crystals Control of photochromism in N-salicylideneaniline by crystal engineering Quinoline derivatives for multi-component crystals: principles and applications N-oxides in multi-component crystals and in bottom-up synthesis and applications Multi-component crystals and non-ambient conditions Co-crystals for solid-state reactivity and thermal expansion Solution co-crystallisation and its applications The salt-co-crystal continuum in halogen-bonded systems Large horizontal displacements of benzene-benzene stacking interactions in co-crystals Simultaneous halogen and hydrogen bonding to carbonyl and thiocarbonylfunctionality Crystal chemistry of the isomeric N,N’-bis(pyridin-n-ylmethyl)-ethanediamides, n = 2, 3 or 4 Solute・solvent interactions mediated by main group element (lone-pair)・・・π(aryl) interactions
Author | : Peter J. Gielisse |
Publisher | : |
Total Pages | : 18 |
Release | : 1965 |
Genre | : Cobalt |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 650 |
Release | : 1905 |
Genre | : Chemistry |
ISBN | : |
Author | : |
Publisher | : Krishna Prakashan Media |
Total Pages | : 356 |
Release | : |
Genre | : |
ISBN | : 9788185842639 |
Author | : Gyaneshwar P. Srivastava |
Publisher | : Routledge |
Total Pages | : 438 |
Release | : 2019-07-16 |
Genre | : Science |
ISBN | : 1351409557 |
There have been few books devoted to the study of phonons, a major area of condensed matter physics. The Physics of Phonons is a comprehensive theoretical discussion of the most important topics, including some topics not previously presented in book form. Although primarily theoretical in approach, the author refers to experimental results wherever possible, ensuring an ideal book for both experimental and theoretical researchers. The author begins with an introduction to crystal symmetry and continues with a discussion of lattice dynamics in the harmonic approximation, including the traditional phenomenological approach and the more recent ab initio approach, detailed for the first time in this book. A discussion of anharmonicity is followed by the theory of lattice thermal conductivity, presented at a level far beyond that available in any other book. The chapter on phonon interactions is likewise more comprehensive than any similar discussion elsewhere. The sections on phonons in superlattices, impure and mixed crystals, quasicrystals, phonon spectroscopy, Kapitza resistance, and quantum evaporation also contain material appearing in book form for the first time. The book is complemented by numerous diagrams that aid understanding and is comprehensively referenced for further study. With its unprecedented wide coverage of the field, The Physics of Phonons will be indispensable to all postgraduates, advanced undergraduates, and researchers working on condensed matter physics.
Author | : Miguel Cerqueira |
Publisher | : John Wiley & Sons |
Total Pages | : 556 |
Release | : 2023-05-11 |
Genre | : Technology & Engineering |
ISBN | : 1119780039 |
FAT MIMETICS FOR FOOD APPLICATIONS Detailed resource providing insight into the understanding of fat mimetics and their use for the development of food products Fat Mimetics for Food Applications explores strategies for the development of fat mimetics for food applications, including meat, dairy, spreads and baked products, covering all the physical strategies and presenting the main characterization techniques for the study of fat mimetics behaviour. The text further provides insight into the understanding of fat mimetics in food structure and how it affects food products. Fat Mimetics for Food Applications is organized into five sections. The first section provides a historical overview and thermodynamic perspective of the structure-properties relationship in fat mimetics. Section II is devoted to the main materials used for the development of fat mimetics, and the structures that result from different methodologies and approaches. Section III overviews the methodologies used for the characterization of the developed replacers. Section IV contains examples of what has been done in the use of fat mimetics in food. Section V focuses on a future perspective, along with real cases of projects within the industry and a commercial perspective of some examples. Topics covered in Fat Mimetics for Food Applications include: Role of lipids in foods and human nutrition; the current status of fats in the food industry; and food trends as they pertain to fat mimetics Materials for the production of fat mimetics such as natural waxes, sterols, lecithin, mono and di-glycerides, fatty alcohols and fatty acids, polysaccharides and proteins Rheological and texture properties; sensorial aspects of fat mimetics and advanced characterization strategies such as small-angle X-ray scattering and small-angle neutron scattering Fat mimetics’ nutritional and functional properties, along with examples of using in vitro gastrointestinal digestion system to unravel the lipids fat during digestion Examples of the application of fat mimetics in different food products such as meat, dairy, margarine and fat spreads and baked products Fat Mimetics for Food Applications targets researchers, academics, and food industry professionals to boost their capability to integrate different science and technology as well as engineering and materials aspects of fat mimetics for food development.
Author | : John Newton Friend |
Publisher | : |
Total Pages | : 416 |
Release | : 1914 |
Genre | : Chemistry, Inorganic |
ISBN | : |