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The theory of magnetic resonance
JOURNAL
OF MAGNETIC
RESONANCE
l&239-242
(1973)
Book Reviews The Theory of Magnetic Resonance.By Charles P. Poole, Jr., and Horatio A. Farach. W iley-Interscience, New York, 1972.xvi + 452 pp. $19.95. This book is concerned with the analysis of magnetic resonancespectra, and techniques are outlined for obtaining the parameters of the spin Hamiltonian for various spin systems, even some very complex ones. The direct product matrix expansion technique permits NMR, ESR, NQR, and Mossbauer spectroscopyto be treated in a unified manner. It will be a useful addition to the literature, particularly for students and for thosebeginning researchin this generalarea,sinceit brings togetherand expands, using a consistent symbolism, much material which has been scattered through the literature in a form difficult to use. Another subject which m ight be associatedwith the title is not coveredat all, n a m e ly, the interpretation of the resulting spin Hamiltonian parameters in terms of structure and bonding. No extensivesurvey of the original literature has beenattempted but there is a very helpful list of references,largely to monographs and conferenceproceedings. Dynamic phenomena are left to a companion volume by the same authors. Following introductory chapters on spin Hamiltonians and matrices, there is a series of chapters in which spin systemsof increasing complexity are analyzed.The two-spin ($,$) system is discussedand applied to both the NMR and ESR cases.Anisotropic g factors and hypertine interactions are then introduced and examplesinvolving both are given. M u ltispin systemsinvolving more than one nuclear or electron spin are treated, including caseswhere I or S are greater than one-half. Chapters on quadrupole effects, zero-field splittings and crystal field effects provide the background neededfor singlecrystal studies of transition metal or rare earth ions. The Mossbauer effect and atomic spectra (optical detection of magnetic resonance)each receivea chapter and the book concludeswith a very brief treatment of line shapesand powder spectra. Since it bridges the gap between introductory books (Carrington and McLachlan) and specialized monographs (Abragam, Corio, Abragam and Bleaney), it would be suitable for use as a text in a graduate level course in magnetic resonancespectroscopy. Its utility as a text is enhancedby an appendix containing a set of representativeproblems. The unified approach adopted here should have pedagogicadvantages,particularly in providing the reader with an understanding of the relationships among the various branches of the subject. The book is clearly written, well reproduced,and remarkably free of errors. It can be recommendedto anyone concernedwith the analysis of the magnetic resonancespectra of solids since it gives explicit instructions for obtaining positions and intensities of lines in single-crystal spectra of a large variety of systems. MAX T. ROGERS Departmentof Chemistry, M ichigan State University Copyright 0 1973 by Academic Press, Inc. All rights of reproduction in any form reserved.
9*
239
OF MAGNETIC
RESONANCE
l&239-242
(1973)
Book Reviews The Theory of Magnetic Resonance.By Charles P. Poole, Jr., and Horatio A. Farach. W iley-Interscience, New York, 1972.xvi + 452 pp. $19.95. This book is concerned with the analysis of magnetic resonancespectra, and techniques are outlined for obtaining the parameters of the spin Hamiltonian for various spin systems, even some very complex ones. The direct product matrix expansion technique permits NMR, ESR, NQR, and Mossbauer spectroscopyto be treated in a unified manner. It will be a useful addition to the literature, particularly for students and for thosebeginning researchin this generalarea,sinceit brings togetherand expands, using a consistent symbolism, much material which has been scattered through the literature in a form difficult to use. Another subject which m ight be associatedwith the title is not coveredat all, n a m e ly, the interpretation of the resulting spin Hamiltonian parameters in terms of structure and bonding. No extensivesurvey of the original literature has beenattempted but there is a very helpful list of references,largely to monographs and conferenceproceedings. Dynamic phenomena are left to a companion volume by the same authors. Following introductory chapters on spin Hamiltonians and matrices, there is a series of chapters in which spin systemsof increasing complexity are analyzed.The two-spin ($,$) system is discussedand applied to both the NMR and ESR cases.Anisotropic g factors and hypertine interactions are then introduced and examplesinvolving both are given. M u ltispin systemsinvolving more than one nuclear or electron spin are treated, including caseswhere I or S are greater than one-half. Chapters on quadrupole effects, zero-field splittings and crystal field effects provide the background neededfor singlecrystal studies of transition metal or rare earth ions. The Mossbauer effect and atomic spectra (optical detection of magnetic resonance)each receivea chapter and the book concludeswith a very brief treatment of line shapesand powder spectra. Since it bridges the gap between introductory books (Carrington and McLachlan) and specialized monographs (Abragam, Corio, Abragam and Bleaney), it would be suitable for use as a text in a graduate level course in magnetic resonancespectroscopy. Its utility as a text is enhancedby an appendix containing a set of representativeproblems. The unified approach adopted here should have pedagogicadvantages,particularly in providing the reader with an understanding of the relationships among the various branches of the subject. The book is clearly written, well reproduced,and remarkably free of errors. It can be recommendedto anyone concernedwith the analysis of the magnetic resonancespectra of solids since it gives explicit instructions for obtaining positions and intensities of lines in single-crystal spectra of a large variety of systems. MAX T. ROGERS Departmentof Chemistry, M ichigan State University Copyright 0 1973 by Academic Press, Inc. All rights of reproduction in any form reserved.
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239