Modern Magnetism

First published in 1948, as the second edition of a 1939 original, this textbook was aimed at undergraduates and discusses magnetism from an experimental standpoint rather than from a strictly theoretical one, allowing for more prominence in the description of fundamental experiments and the industrial applications of magnetic materials. Bates explains, 'it is no exaggeration to state that some of the most important experiments whose results have been used very many times in theoretical discussions have not been adequately described in English'. A variety of topics are covered, including susceptibility measurements with isotropic substances, the magnetic properties of crystals and radiofrequency spectroscopy. Multiple diagrams are included for reference. This book presents an account of magnetic theory and reassesses and redefines magnetism's relationship with the experimental side of physics and will be of value to scholars of physics as well as to anyone with an interest in the history of education.Preface; Preface to the second edition; 1. Fundamental conceptions in magnetism; 2. The production and measurement of magnetic fields; 3. Susceptibility measurements with isotropic substances; 4. The magnetic properties of crystals; 5. Experiments with single particles; 6. Nuclear spins and magnetic moments; 7. Gyromagnetic effects; 8. Magnetic saturation and equation of state; 9. Energy changes associated with reversible magnetisation; 10. Magnetostriction; 11. Interpretation of the hysteresis cycle; 12. Recent work on ferromagnetic substances; 13. Recent work on weakly magnetic substances; 14. Radiofrequency spectroscopy; 15. Adiabatic demagnetisation and its applications; 16. Paramagnetic absorption and dispersion; Notes; Subject index; Name index.