Jorwnol c$ Crysttrl Gwwth
6 (1970) 361 8~J North-Hollund
Publishing
Co., Amsierdam
BOOK REVIEW
The Observation dam,
of Atomic
1968) x+281
Collisions in Crystalline
Solids, by R. S. Nelson
(North-Holland
Publ. Co., Amster-
pages, 227 figures. Price $14.00.
The book is the first volume in a series on DEFECTS IN CRYSTALLINE SOLIDS, edited by S. Amelinckx, R. Gevers and J. Nihoul. The title “Defects in Crystalline Solids” is somewhat misleading as the book deals mainly with the influence of the regular atomic arrangement on collisions in crystals. The main topics in the book are: Channelling, which deals with the passage of fast particles through open channels in specific orientations of the crystal lattice, and focusing, which deals with directional correlation between successive collisions transferring momentum along lattice directions with small interatomic spacing. Sputtering effects are also described in some detail, again stressing mainly the back scattering of the sputtered atoms in specific lattice orientations. The book contains seven chapters, Chapter 1 gives a very short introduction, and Chapter 2 introduces the basic theoretical concepts in collision of particles. Sophisticated theoretical considerations are left to another monograph in the same series (by Chr. Lehmann). Still a proper theoretical background is given throughout the whole of the present book. Chapter 3 presents,
in a somewhat too short way (14 pages), the experimental techniques. The longest chapter in the book is the 4th (pp. 32-168). It deals, almost exclusively, with channelling effect, giving a good introduction for readers interested in investigation in this field. For the average reader, however, the repetition of similar results again and again for different materials seems unnecessary. The main topic of Chapter 5 is focusing, and that of Chapter 6 is sputtering. The last Chapter describes in short such phenomena as thermal spikes and jission tracks produced in crystals by energetic particles. In conclusion, the book, though dealing very little with defects in crystals, presents quite in detail and with authority interesting observations of interaction of colliding particles with crystal lattices, and many solid state scientists will find much interest in the book
361
A. HALPERIN Department Israel
of Physics,
Hebrew
University,
Jerusalem.