Elsevier, 1995. 651 p. ISBN: 978-0-444-82232-1
The Handbook series Magnetic Materials is a continuation of the Handbook series Ferromagnetic Materials. The original aim of Peter Wohlfarth when he started the latter series was to combine new developments in magnetism with the achievements of earlier compilations of monographs, producing a worthy successor to Bozorth's classical and monumental book Ferromagnetism. This is the main reason that Ferromagnetic Materials was initially chosen as title for the Handbook series, although the latter aimed at giving a more complete cross-section of magnetism than Bozorth's
book.
Magnetism has seen an enormous expansion into a variety of different areas of research in the last few years, comprising the magnetism of several classes of novel materials that share with truly ferromagnetic materials only the presence of magnetic moments. For this reason the Editor and Publisher of this Handbook series have carefully reconsidered the title of the Handbook series and changed it into Magnetic Materials. It is with much pleasure that I can introduce to you now Volume 9 of this Handbook series.
The magnetism of the majority of metallic systems can adequately be described by the well known concepts of localised or itinerant moment magnetism. These traditional concepts are, however, not able to describe the magnetism of a fairly large class of materials generally indicated as heavy-fermion systems. The magnetism of these strongly correlated charge-carrier systems has developed from two different sources, the Kondo-impurity concept and the intermediate-valence concept. The last decade has seen a strong proliferation in experimental and theoretical studies of such systems. Progress made in this field by means of inelastic neutron scattering was described already in Chapter 6 of Volume 7 of the Handbook. A more general account of the magnetism of heavy-fermion systems is presented in Chapter 1 of the present Volume.
Towers of strengths to the understanding of the physics of magnetism are theory and experiment. In Volume 7 of the Handbook two different chapters were devoted to the former, emphasising results of electronic band structure calculations and their beneficial influence on the understanding of magnetism in many materials. As a counterweight, two novel experimental techniques will be described in the present Volume. The first one, Chapter 2, deals with muon spin rotation, the second one, Chapter 5, gives an account of the possibilities offered by photon beam spectroscopy. In both chapters it is shown how these sophisticated experimental methods can be used to obtain experimental information not easily obtainable by conventional experimental methods.
Interstitially modified intermetallic compounds of rare earth and 3d elements are described in Chapter
3. These materials can be obtained from the pure intermetallics by filling some of the available interstitial hole sites in their crystal structure with carbon, nitrogen or hydrogen atoms. Though the drastic changes of magnetocrystalline anisotropy and magnetic couplings are of substantial fundamental interest, a large part of the Chapter is devoted to practical consequences as found in mode permanent magnet technology.
In one of the preceding volumes, Vol. 7, a major updating of the experimental results was presented for intermetallics in which rare earths are combined with 3d transition metals, while progress in ferrite research was presented in Vol.
8. Both groups of materials are fairly extensive, as are the many experimental results that have accumulated over the years. Of particular interest in these two groups of materials is the occurrence of field-induced phase transitions. These phase transitions are commonly treated in a rather phenomenological way, and at best, are described in terms of anisotropy and moment couplings. The last chapter of the present volume deals with the thermodynamic approach and shows how the understanding and description of these magnetic phase transitions can be considerably enriched.
Volume 9 of the Handbook on the Properties of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 9 of the Handbook is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science.
The task to provide the readership with novel trends and achievements in magnetism would have been extremely difficult without the professionalism of the North-Holland Physics Division of Elsevier Science B.V. , and I wish to thank Joep Verheggen and Wim Spaans for their great help and expertise.
Preface to Volume 9.
Contents.
Contents of Volumes 1-8.
List of Contributors.
Heavy Fermions and Related Compounds.
Magnetic Materials Studied by Muon Spin Rotation Spectroscopy.
Interstitially Modified Intermetallics of Rare Earth and 3d Elements.
Field Induced Phase Transitions in Ferrimagnets.
Photon Beam Studies of Magnetic Materials.
Author Index.
Subject Index.
Materials Index.
The Handbook series Magnetic Materials is a continuation of the Handbook series Ferromagnetic Materials. The original aim of Peter Wohlfarth when he started the latter series was to combine new developments in magnetism with the achievements of earlier compilations of monographs, producing a worthy successor to Bozorth's classical and monumental book Ferromagnetism. This is the main reason that Ferromagnetic Materials was initially chosen as title for the Handbook series, although the latter aimed at giving a more complete cross-section of magnetism than Bozorth's
book.
Magnetism has seen an enormous expansion into a variety of different areas of research in the last few years, comprising the magnetism of several classes of novel materials that share with truly ferromagnetic materials only the presence of magnetic moments. For this reason the Editor and Publisher of this Handbook series have carefully reconsidered the title of the Handbook series and changed it into Magnetic Materials. It is with much pleasure that I can introduce to you now Volume 9 of this Handbook series.
The magnetism of the majority of metallic systems can adequately be described by the well known concepts of localised or itinerant moment magnetism. These traditional concepts are, however, not able to describe the magnetism of a fairly large class of materials generally indicated as heavy-fermion systems. The magnetism of these strongly correlated charge-carrier systems has developed from two different sources, the Kondo-impurity concept and the intermediate-valence concept. The last decade has seen a strong proliferation in experimental and theoretical studies of such systems. Progress made in this field by means of inelastic neutron scattering was described already in Chapter 6 of Volume 7 of the Handbook. A more general account of the magnetism of heavy-fermion systems is presented in Chapter 1 of the present Volume.
Towers of strengths to the understanding of the physics of magnetism are theory and experiment. In Volume 7 of the Handbook two different chapters were devoted to the former, emphasising results of electronic band structure calculations and their beneficial influence on the understanding of magnetism in many materials. As a counterweight, two novel experimental techniques will be described in the present Volume. The first one, Chapter 2, deals with muon spin rotation, the second one, Chapter 5, gives an account of the possibilities offered by photon beam spectroscopy. In both chapters it is shown how these sophisticated experimental methods can be used to obtain experimental information not easily obtainable by conventional experimental methods.
Interstitially modified intermetallic compounds of rare earth and 3d elements are described in Chapter
3. These materials can be obtained from the pure intermetallics by filling some of the available interstitial hole sites in their crystal structure with carbon, nitrogen or hydrogen atoms. Though the drastic changes of magnetocrystalline anisotropy and magnetic couplings are of substantial fundamental interest, a large part of the Chapter is devoted to practical consequences as found in mode permanent magnet technology.
In one of the preceding volumes, Vol. 7, a major updating of the experimental results was presented for intermetallics in which rare earths are combined with 3d transition metals, while progress in ferrite research was presented in Vol.
8. Both groups of materials are fairly extensive, as are the many experimental results that have accumulated over the years. Of particular interest in these two groups of materials is the occurrence of field-induced phase transitions. These phase transitions are commonly treated in a rather phenomenological way, and at best, are described in terms of anisotropy and moment couplings. The last chapter of the present volume deals with the thermodynamic approach and shows how the understanding and description of these magnetic phase transitions can be considerably enriched.
Volume 9 of the Handbook on the Properties of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 9 of the Handbook is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science.
The task to provide the readership with novel trends and achievements in magnetism would have been extremely difficult without the professionalism of the North-Holland Physics Division of Elsevier Science B.V. , and I wish to thank Joep Verheggen and Wim Spaans for their great help and expertise.
Preface to Volume 9.
Contents.
Contents of Volumes 1-8.
List of Contributors.
Heavy Fermions and Related Compounds.
Magnetic Materials Studied by Muon Spin Rotation Spectroscopy.
Interstitially Modified Intermetallics of Rare Earth and 3d Elements.
Field Induced Phase Transitions in Ferrimagnets.
Photon Beam Studies of Magnetic Materials.
Author Index.
Subject Index.
Materials Index.