文档介绍：Physics of ism
and ic Materials
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Physics of ism
and ic Materials
K. H. J. Buschow
Van der Waals-Zeeman Instituut
Universiteit van Amsterdam
Amsterdam, herlands
and
F. R. de Boer
Van der Waals-Zeeman Instituut
Universiteit van Amsterdam
Amsterdam, herlands
KLUWER ACADEMIC PUBLISHERS
NEW YORK, BOSTON, DORDRECHT, LONDON, MOSCOW
eBook ISBN: 0-306-48408-0
Print ISBN: 0-306-47421-2
©2004 Kluwer Academic Publishers
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Print ©2003 Kluwer Academic/Plenum Publishers
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Contents2
Chapter 1. Introduction 1
Chapter 2. The Origin of Atomic Moments 3
. Spin and Orbital States of Electrons 3
. The Vector Model of Atoms 5
Chapter 3. ism of Free Ions 11
. The Brillouin Function 11
. The Curie Law 13
References 17
Chapter 4. The ically Ordered State 19
. The Heisenberg Exchange Interaction and the Weiss Field 19
. ism 22
. ism 26
. ism 34
References 41
Chapter 5. Crystal Fields 43
. Introduction 43
. Quantum-Mechanical Treatment 44
. Experimental Determination of Crystal-Field Parameters 50
. The Point-Charge Approximation and Its Limitations 52
. Crystal-Field-Induced Anisotropy 54
. A Simplified View of 4f-Electron Anisotropy 56
References 57
Chapter 6. ism 59
Reference 61
v
vi3 CONTENTS
Chapter 7. Itinerant-Electron ism 63
. Introduction 63
. Susceptibility Enhancement 65
. Strong and Weak ism 66
. Intersublattice Coupling in Alloys of Rare Earths and 3d Metals 70
References 73
Chapter 8. Some Basic Conce