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Books > Science & Mathematics > Chemistry > Crystallography
Handbook on the Physics and Chemistry of Rare Earths: Including
Actinides, Volume 61 presents the latest release in this continuous
series that covers all aspects of rare earth science, including
chemistry, life sciences, materials science and physics.
This book provides a comprehensive study of the symmetry and
geometry of crystals and molecules, starting from first principles.
The pre-knowledge assumed is mathematics and physical science to
about A-level; additional mathematical topics are discussed in
appendices. It is copiously illustrated, including many
stereoviews, with instructions both for stereoviewing and for
constructing a stereoviewer. Problems for each chapter are
provided, with fully worked tutorial solutions. A suite of
associated computer programs has been devised and placed on-line,
for assisting both the study of the text and the solutions of the
problems. The programs are easily executed, and instructions are
provided in the text and on the monitor screen. The applicability
of symmetry in everyday life as well as in science is stressed.
Point groups and space groups are first discussed and derived in a
semi-analytical manner, and later by use of group theory. The basic
principles of group theory are discussed, together with
applications to symmetry, chemical bonding and aspects of
vibrations of molecules and crystals. The book is addressed to
those studying the physical sciences and meeting the subject for
the first time, and it brings the reader to a level of appreciation
for the definitive works produced by the International Union of
Crystallography, such as the International Tables for X-ray
Crystallography, Vol 1 (1965) and the International Tables for
Crystallography, Vol A (2006).
Written by an experienced university teacher, this textbook is
based on the author's lectures, and is designed to answer students'
questions rather than delving into obscure details. The
well-balanced approach gives precedence to a visual, intuitive
understanding, with only as much math as is necessary. The author
covers the topic of symmetry in crystals from basic elements to
physical properties, backed by numerous clear-cut illustrations and
easy-to-read crystallographic tables.
The result is a compact and self-contained treatment suitable for
crystallography courses in physics, chemistry, materials science
and biology - irrespective of the academic background.
For many years it was believed that translational symmetry would be
the fundamental property of crystal structures of natural and
synthetic compounds. It is now recognised that many compounds
crystallise without translational symmetry of their atomic
structures. "Incommensurate Crystallography" gives a comprehensive
account of the superspace theory for the description of crystal
structures and symmetries of these incommensurately modulated
crystals and incommensurate composite crystals. It thus provides
the necessary background for quantitative analysis of
incommensurate crystals by methods in Solid State Chemistry and
Solid State Physics. The second half of "Incommensurate
Crystallography" is devoted to crystallographic methods of
structural analysis of incommensurate compounds. Thorough accounts
are given of the diffraction by incommensurate crystals, the choice
of parameters in structure refinements, and the use of superspace
in analysing crystal structures. The presentation of methods of
structure determination includes modern methods like the Maximum
Entropy Method and Charge Flipping.
"This book presents the reader with a fresh and unconventional
approach to teaching crystallographic symmetry. Whereas traditional
crystallography textbooks make a heavy use of algebra and rapidly
become very technical, this book adopts in the first few chapters a
'pictorial' approach based on the symmetry diagrams of the
International Tables for Crystallography. Readers are led
step-by-step through simple 'frieze' and 'wallpaper' patterns, with
many examples from the visual arts. At the end of chapter 3 they
should be able to identify and analyse all these simple symmetries
and apply to them the nomenclature and symbols of the International
Tables. Mathematical formalism is introduced later on in the book,
and by that time the reader will have gained a solid intuitive
grasp of the subject matter. This book will provide graduate
students, advanced undergraduate students and practitioners in
physics, chemistry, earth sciences and structural biology with a
solid foundation to master the International Tables of
Crystallography, and to understand the relevant literature"--
This book shows how the fundamentals of electron paramagnetic
resonance (EPR) spectroscopy are practically implemented and
illustrates the diversity of current applications. The technique is
used at various levels, and applications are presented in order of
increasing difficulty, with reference to theoretically obtained
results. This book features a diverse array of application
examples, from fields such as ionizing radiation dosimetry,
neurodegenerative diseases, structural transitions in proteins, and
the origins of terrestrial life. The final chapter of this book
highlights the principles and applications of the technique of
ferromagnetic resonance spectroscopy, followed by a brief
introduction to advanced EPR techniques such as electron spin echo
envelope modulation (ESEEM), hyperfine sub-level correlation
(HYSCORE), pulsed electron-electron double resonance (PELDOR), and
continuous wave electron nuclear double resonance (ENDOR)
experiments.
Although originally invented and employed by physicists, electron
paramagnetic resonance (EPR) spectroscopy has proven to be a very
efficient technique for studying a wide range of phenomena in many
fields, such as chemistry, biochemistry, geology, archaeology,
medicine, biotechnology, and environmental sciences. Acknowledging
that not all studies require the same level of understanding of
this technique, this book thus provides a practical treatise
clearly oriented toward applications, which should be useful to
students and researchers of various levels and disciplines. In this
book, the principles of continuous wave EPR spectroscopy are
progressively, but rigorously, introduced, with emphasis on
interpretation of the collected spectra. Each chapter is followed
by a section highlighting important points for applications,
together with exercises solved at the end of the book. A glossary
defines the main terms used in the book, and particular topics,
whose knowledge is not required for understanding the main text,
are developed in appendices for more inquisitive readers.
New models for dislocation structure and motion are presented for
nanocrystals, nucleation at grain boundaries, shocked crystals,
interphase interfaces, quasicrystals, complex structures with
non-planar dislocation cores, and colloidal crystals. A review of
experimentally established main features of the magnetoplastic
effect with their physical interpretation explains many diverse
results of this type. The model has many potential applications for
forming processes influenced by magnetic fields.
Dislocation model for the magnetoplastic effect
New mechanism for dislocation nucleation and motion in
nanocrystals
New models for the dislocation structure of interfaces between
crystals with differing crystallographic structure
A unified view of dislocations in quasicrystals, with a new model
for dislocation motion
A general model of dislocation behavior in crystals with
non-planar dislocation cores
Dislocation properties at high velocities
Dislocations in colloidal crystals"
This book features the essential material for any graduate or
advanced undergraduate course covering solid-state
electrochemistry. It provides the reader with fundamental course
notes and numerous solved exercises, making it an invaluable guide
and compendium for students of the subject. The book places
particular emphasis on enhancing the reader's expertise and
comprehension of thermodynamics, the Kroeger-Vink notation, the
variation in stoichiometry in ionic compounds, and of the different
types of electrochemical measurements together with their
technological applications. Containing almost 100 illustrations, a
glossary and a bibliography, the book is particularly useful for
Master and PhD students, industry engineers, university
instructors, and researchers working with inorganic solids in
general.
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