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Author : K. J. Standley
Publisher : Springer
Page : 254 pages
File Size : 55,6 Mb
Release : 2013-12-01
Category : Science
ISBN : 9781489965394
Author : J. Fünfschilling
Publisher : Springer Science & Business Media
Page : 282 pages
File Size : 52,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400908635
Relaxation phenomena of excited molecular states are abundant in all nature. They mediate such key processes as photochemical reactions or even the pathways of ordinary chemical reactions. However, for a long time the main research in electronic relaxation processes was concerned with anorganic solids, in part because of their great technological importance (photography, semiconductors ... ) in part also because these compounds were the "workhorses" of the solid state physicists. In the last 30 years, there was a steadily increasing interest in organic molecular systems, first in molecular crystals and later in all forms of molecular solids (glasses, polymers, membranes, ... ). The present volume combines papers on quite different types of relaxation phenomena: the type of solid studied, the electronic states involved, the physical processes responsible for the relaxations are all different. Nevertheless, after reading this book, a more clear and complete picture of the phenomenon "relaxa tion" emerges that proves that this volume is more than just a collection of individual articles. The volume starts with the paper "Spin-lattice and spin-spin relaxation in photo-excited triplet states in molecular crystals" by Jan Schmidt. Even in these seemingly simple systems of isolated guest molecules in a single crystal host, the relaxation phenomena are quite involved and a very thorough investigation is necessary to find the key relaxation processes. The end of the article provides a bridge to the following paper: it treats interactions of two molecules (dimers), where resonant interactions become important and lead to new, characteristic relaxation processes.
Author : Sushil K. Misra
Publisher : John Wiley & Sons
Page : 990 pages
File Size : 40,5 Mb
Release : 2011-03-31
Category : Science
ISBN : 9783527633555
Filling the gap for a systematic, authoritative, and up-to-date review of this cutting-edge technique, this book covers both low and high frequency EPR, emphasizing the importance of adopting the multifrequency approach to study paramagnetic systems in full detail by using the EPR method. In so doing, it discusses not only the underlying theory and applications, but also all recent advances -- with a final section devoted to future perspectives.
Author : John Wertz
Publisher : Springer Science & Business Media
Page : 510 pages
File Size : 54,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400940758
In the twenty-five years since its discovery by Zavoiskii, the technique of electron spin resonance (ESR) spectroscopy has provided detailed struc tural information on a variety of paramagnetic organic and inorganic sys tems. It is doubtful that even much later than 1945 any chemist would have been so bold as to predict the great diversity of systems which have proved amenable to study by ESR spectroscopy. In this book we have attempted to provide numerous examples of actual ESR spectra to illus trate the wide scope of application. No attempt has been made to present a comprehensive coverage of the literature in any field, but references to reviews and key articles are given throughout the book. This introductory textbook had its origin in lecture notes prepared for an American Chemical Society short course on electron spin resonance. The present version is the result of extensive revision and expansion of the original notes. Experience with such courses has convinced us that there are large numbers of chemists, physicists, and biologists who have a strong interest in electron spin resonance. The mathematical training of most of the short-course students is limited to calculus. Their contact with theories of molecular structure is largely limited to that obtained in an elementary physical chemistry course. It is to an audience of such background that this book is directed.
Author : Gerald F. Dionne
Publisher : Springer Science & Business Media
Page : 474 pages
File Size : 52,8 Mb
Release : 2010-03-26
Category : Technology & Engineering
ISBN : 9781441900548
Magnetic Oxides offers a cohesive up-to-date introduction to magnetism in oxides. Emphasizing the physics and chemistry of local molecular interactions essential to the magnetic design of small structures and thin films, this volume provides a detailed view of the building blocks for new magnetic oxide materials already advancing research and development of nano-scale technologies. Clearly written in a well-organized structure, readers will find a detailed description of the properties of magnetic oxides through the prism of local interactions as an alternative to collective electron concepts that are more applicable to metals and semiconductors. Researchers will find Magnetic Oxides a valuable reference.
Author : Arthur Schweiger,Gunnar Jeschke
Publisher : Unknown
Page : 608 pages
File Size : 53,6 Mb
Release : 2001
Category : Medical
ISBN : 0198506341
Pulse EPR (electron paramagnetic resonance) is one of the newest and most widely used techniques for examining the structure, function and dynamics of biological systems and synthetic materials. Until now, however, there has been no single text dedicated to this growing area of research. This text addresses the need for a comprehensive overview of Pulse EPR. The book covers the basic theory of pulse EPR, as well as a description and critical evaluation of the existing and emerging methods needed for selecting and conducting the proper experiment and analyzing the results. This is an indispensable reference for all scientists who need a thorough grounding in this increasingly popular field of spectroscopy.
Author : M. M. Dorio
Publisher : Springer Science & Business Media
Page : 519 pages
File Size : 44,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781468434415
Abragam and Bleaney/H) and others.o6---19) Basically, this volume deals with those spectroscopic techniques that use EPR as a detection method. Chapters 2 through 5 cover the experimental and theoretical aspects of multiple resonance spectroscopy. Chapters 6 through 12 are systems-oriented and deal with the multiple resonance techniques applied to crystals, glasses, bioproteins, polymers, and triplets. The concepts of the first five chapters illustrate the strength of MERS to solve a broad range of problems. Chapters 13 and 14 are rather detailed introductions to two of the latest new applications: TRIPLE resonance and optical perturbations in EPR. The latter is to be distinguished from the OMDR (optical magnetic double resonance) techniques, in which the optical system is the detection method. References 1. E. J. Zavoisky, J. Phys. U.S.S.R. 9, 211 (1945). 2. J. S. Hyde, Ann. Rev. Phys. Chern. 25, 407 (1974). 3. N. M. Atherton, Electron Spin Resonance (Specialist Periodical Reports, The Chemical Society, London) 1, 32 (1972); 2, 35 (1974). 4. J. H. Freed, Ann. Rev. Phys. Chern. 23, 265 (1972). 5. J. E. Wertz and J. R. Bolton, Electron Spin Resonance, Elementary Theory and Practical Applications, p. xii, McGraw-Hill Book Co., New York (1972). 6. G. Feher, Phys. Rev. 103,834 (1956). 7. P. P. Sorokin, G. J. Lasher, and I. L. Gelles, Phys. Rev. 118, 939 (1960). 8. N. Bloembergen, S. Shapiro, P. S. Pershan, and J. O. Artman, Phys. Rev. 114,445 (1959).
Author : Daniella Goldfarb,Stefan Stoll
Publisher : John Wiley & Sons
Page : 648 pages
File Size : 47,5 Mb
Release : 2018-03-06
Category : Science
ISBN : 9781119162971
This unique, self-contained resource is the first volume on electron paramagnetic resonance (EPR) spectroscopy in the eMagRes Handbook series. The 27 chapters cover the theoretical principles, the common experimental techniques, and many important application areas of modern EPR spectroscopy. EPR Spectroscopy: Fundamentals and Methods is presented in four major parts: A: Fundamental Theory, B: Basic Techniques and Instrumentation, C: High-Resolution Pulse Techniques, and D: Special Techniques. The first part of the book gives the reader an introduction to basic continuous-wave (CW) EPR and an overview of the different magnetic interactions that can be determined by EPR spectroscopy, their associated theoretical description, and their information content. The second provides the basics of the various EPR techniques, including pulse EPR, and EPR imaging, along with the associated instrumentation. Parts C and D builds on parts A and B and offer introductory accounts of a wide range of modern advanced EPR techniques, with examples of applications. The last two parts presents most of the new advances that do not appear in most of the classical EPR textbooks that focus on CW EPR. EPR Spectroscopy: Fundamentals and Methods contains, in concise form, all the material needed to understand state-of-the-art EPR spectroscopy at the graduate school/research level, whilst the editors have ensured that it presents the topic at a level accessible to newcomers to the field and others who want to know its range of application and how to apply it.
Author : Charles P. Jr. Poole
Publisher : Elsevier
Page : 409 pages
File Size : 49,8 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323151825
Relaxation in Magnetic Resonance contains a series of lecture notes for a special topics course at the University of South Carolina in 1967. This book contains 21 chapters that summarize the main theoretical formulations and experimental results of magnetic resonance relaxation phenomena in several physical systems. This text deals first with the various methods in determining the relaxation behavior of the macroscopic spin system, such as Bloch equations, saturation methods, and transient resonant absorption. The subsequent chapters discuss the homogeneous and inhomogeneous resonant lines in solids and liquids and the significance of the Kubo-Tomita and Redfield theories in magnetic resonance. This book then considers the background research on electron spin resonance and relaxation in ionic solids. The concluding chapters explore the acoustic absorption coefficient and dielectric constant calculation; the relaxation processes in paramagnetic substance; and the characteristics of Mössbauer spectra and their application in magnetic relaxation. This book will be useful to both graduate students embarking upon thesis problems in relaxation and more advanced workers who seek an overall summary of the status of the field, as well as to physicists and chemists.
Author : Charles P. Poole
Publisher : Courier Corporation
Page : 820 pages
File Size : 46,9 Mb
Release : 1996-01-01
Category : Science
ISBN : 0486694445
Second edition of classic reference contains comprehensive coverage of experimental techniques, theoretical and practical aspects of ESR instrumentation. Recent developments, plus how to build, use ESR spectrometer. References. 1982 edition.
Author : L. Challis
Publisher : Springer Science & Business Media
Page : 459 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461342717
The Second International Conference on Phonon Scattering in Solids was held at the University of Nottingham from August 27th - 30th 1975. It was attended by 192 delegates from 24 countries who were accompanied by 43 members of their families. Eleven invited papers were read and 96 contributed papers; the contributed papers were in two parallel sessions. The Conference included the topics of the two International Conferences held in France in 1972, in Paris and at Ste Maxime. The Conference brought together workers concerned with many aspects of phonon scattering in solids and liquid helium. Some of the work reported were studies of the intrinsic properties of diel ectric materials such as the effects of anharmonicity, dispersion and anisotropy on phonon propagation and the conditions for the existence of zero sound and second sound modes. Work was also pres ented on various aspects of phonon interaction with free electrons in metals and semiconductors. A substantial part of the Conference was devoted to phonon spectroscopy - investigations of the energy levels of ions or neutral impurities by observing the resonant absorp tion or scattering of phonons. The materials being studied include paramagnetic and parae1ectric solids, amorphous systems in which the 'impurities' appear to be intrinsic, and semiconductors. Work was reported on the use of phonons to observe phase transitions; in some cases the cooperative phase also arises through strong spin phonon coupling. One of the intriguing unsolved problems discussed in detail at the Conference is the Kapitza conductance problem.
Author : John A. Weil,James R. Bolton
Publisher : John Wiley & Sons
Page : 690 pages
File Size : 43,5 Mb
Release : 2007-01-09
Category : Science
ISBN : 9780470084977
This book provides an introduction to the underlying theory, fundamentals, and applications of EPR spectroscopy, as well as new developments in the area. Knowledge of the topics presented will allow the reader to interpret of a wide range of EPR spectra, as well as help them to apply EPR techniques to problem solving in a wide range of areas: organic, inorganic, biological, and analytical chemistry; chemical physics, geophysics, and minerology. Includes updated information on high frequency and multi-frequency EPR, pulsed microwave techniques and spectra analysis, dynamic effects, relaxation phenomena, computer-based spectra simulation, biomedical aspects of EPR, and more Equips readers with sufficient knowledge of EPR techniques to go on in their specialized area of interest Provides problem sets and concise bibliographies at the end of each chapter, plus several tutorial appendices on topics like mathematical operations, quantum mechanics of angular momentum, experimental considerations.
Author : L. Muus
Publisher : Springer Science & Business Media
Page : 543 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461586784
Electron spin relaxation has established itself as an important experimental method for studying the details of molecular motion in liquids, and as a harsh testing ground for theoreticians. The theo retical difficulties are connected with the complexity of the mole cular motion, and the theoretical interest lies not only in its im portant consequences for the interpretation of experiments, but also in the fascination of a system in which a well-defined quantum me chanical component is in interaction with a complex quasi-classical environment. It is because the theories are concerned with such dissimilar but connected systems that the techniques involved are so numerous. Many of the standard manipulations of quantum mechanics must be brought to bear, and at the same time they must be combined with statistical techniques which are often of considerable sophis tication. The purpose of this volume is to present a survey of these techniques and their application to spin relaxation problems. No single volume can be exhaustive, but we believe that the contri butions to this volume are sufficiently broad to show how those who are concerned with spin relaxation problems think about the subject and circumvent, or expose, its difficulties. The first few Chapters (I-V) review the basic quantum mechani cal and statistical manipulations which are often used.
Author : Gareth R Eaton,Sandra S Eaton,Kev M Salikhov
Publisher : World Scientific
Page : 832 pages
File Size : 44,6 Mb
Release : 1998-05-08
Category : Technology & Engineering
ISBN : 9789814496810
Since its inception 50 years ago, electron paramagnetic resonance (EPR, also called ESR or EMR) has become a major tool in diverse fields ranging from biology and chemistry to solid state physics and materials science. This important book includes personal descriptions of early experiments by pioneers who laid the foundations for the field, perspectives on the state of the art, and glimpses of future opportunities. It presents a broad view of the foundations of EPR and its applications, and will therefore appeal to scientists in many fields. Even the expert will find here history not previously recorded and provocative views of future directions. Contents: Historical IntroductionTransition MetalsOrganic RadicalsGas Phase EPRElectrochemically Generated RadicalsRadicals Formed by RadiationApplications to Biological SystemsSpin–Spin InteractionsTime-Domain EPRImagingDevelopment of EPR InstrumentationOther EPR Detection MethodsThe Next 50 Years Readership: Scientists interested in spectroscopy and its applications. keywords:Double Resonance Methods;Electron Spin Echo;Electron Spin Resonance;EPR Imaging;History of Paramagnetic Resonance;Nitroxyl Spin Labels;Organic Free Radicals;Paramagnetic Metal Complexes;Protein Structure;Triplet State
Author : Lucia Banci,Ivano Bertini,Claudio Luchinat
Publisher : Wiley-VCH
Page : 236 pages
File Size : 47,8 Mb
Release : 1991-11
Category : Science
ISBN : UOM:39015053340397
This book deals with spin relaxation by underlying the similarities between nuclear and electron spins, and provides a clear and unified picture of the behavior of spins in magnetic resonance. It is especially tailored for scientists dealing with chemical applications of relaxation phenomena. It reviews the basic theory together with the mathematical approach and shows how the theory elucidates the structure and dynamic behavior of transition metal complexes, metal clusters and metalloproteins. The complete theory of contrast agents in magnetic resonance imaging is also presented. The book is a unique and valuable guide for anyone working with paramagnetic systems, from physical and inorganic chemists to biophysicists.
