Abstract

<h2>Acta Crystallographica Section A</h2><h3>Crystal Physics, Diffraction, Theoretical and General Crystallography</h3><h3>0567-7394</h3> <h2>book reviews</h2> Volume 29 Part 3 Pages 313-314 May 1973 <h2> Oxide magnetic materials (2nd ed.) by K. J. Standley</h2> S. Geller Oxide magnetic materials (2nd Ed.). BY K. J. STAND- LEV. Pp.viii+254. Oxford Univ. Press, 1972. Price £5.50. This book on oxide materials has both strengths and weak- nesses. Its strengths lie in the subjects with which the author has had most experience. Chapter 9, for example, is an excel- lent exposition of the propagation of electromagnetic waves in a magnetized medium. Conditions for ferromagnetic and ferrimagnetic resonance are developed. Most of the discus- sion is on polycrystalline materials, but tables of results on single-crystal specimens of ferrospinels and rare earth garnet materials are given. Chapters 5 and 6 deal with magnetic and electrical properties mainly of ferrospinels and garnets. Chapter 8 deals with low-frequency applications and while not much recent work is described, it contains useful inform- ation for the non-expert. Of special interest is the explana- tion of the desirability of square-hysteresis-loop ferrites for magnetic core switches which have been so important in the development of big computers. Chapter 10 is on high-fre- quency ferrite