The idea of this conference grew out of the rapidly increas­ ing volume of experimental facts. and theoretical concepts related to the problem of crystal-field effects in metals and alloys. The crystal field plays an important role in the understanding of the energetic level structure of ions in condensed matter. In partic­ ular, the magnetic properties of rare earth metals and alloys are strongly influenced by the crystal field. In the phenomenological theory the crystal field successfully describes the static and dynamic magnetic properties of these systems. On the other hand the microscopic origin of the crystal field in metals is not yet fully understood. However, recent years have seen some of the areas of crystal-field effects mature to the point that they should be summarized and brought to the active notice of a larger audience. In addition, a number of exciting developments have occured which deserve attention. This book contains 13 invited and 45 contributed papers pres­ ented at the 2nd international conference on crystal-field effects in metals and alloys held at ZUrich, Switzerland, September 1-4, 1976. Emphasis was placed on the following specific categories of interest: spin waves and excitons, soft modes and critical effects, magnetic properties, physical properties influenced by crystal­ field effects, actinides and valency. Because the conference was relatively small, about 120 participants, and because the topic was relatively narrow, recent work in the field could be treated thor­ oughly and the present state of knowledge assessed comprehensively.

The idea of this conference grew out of the rapidly increas­ ing volume of experimental facts. and theoretical concepts related to the problem of crystal-field effects in metals and alloys. The crystal field plays an important role in the understanding of the energetic level structure of ions in condensed matter. In partic­ ular, the magnetic properties of rare earth metals and alloys are strongly influenced by the crystal field. In the phenomenological theory the crystal field successfully describes the static and dynamic magnetic properties of these systems. On the other hand the microscopic origin of the crystal field in metals is not yet fully understood. However, recent years have seen some of the areas of crystal-field effects mature to the point that they should be summarized and brought to the active notice of a larger audience. In addition, a number of exciting developments have occured which deserve attention. This book contains 13 invited and 45 contributed papers pres­ ented at the 2nd international conference on crystal-field effects in metals and alloys held at ZUrich, Switzerland, September 1-4, 1976. Emphasis was placed on the following specific categories of interest: spin waves and excitons, soft modes and critical effects, magnetic properties, physical properties influenced by crystal­ field effects, actinides and valency. Because the conference was relatively small, about 120 participants, and because the topic was relatively narrow, recent work in the field could be treated thor­ oughly and the present state of knowledge assessed comprehensively.

This volume provides a topical survey of the static and dynamic properties of hydrogen in both metallic and inorganic materials studied by neutron scattering which has been the key technique in this field for a long time. The static aspects deal with the localization of hydrogen in a variety of materials including the technically important metal hydrides, zeolites, and superionic conductors. The dynamic aspects concentrate on local modes, hydrogen bonds, tunneling, and diffusion. All these topics are thoroughly introduced, methodically discussed, and highlighted with recent experimental results by acknowledged experts.

The idea of this conference grew out of the rapidly increas­ ing volume of experimental facts. and theoretical concepts related to the problem of crystal-field effects in metals and alloys. The crystal field plays an important role in the understanding of the energetic level structure of ions in condensed matter. In partic­ ular, the magnetic properties of rare earth metals and alloys are strongly influenced by the crystal field. In the phenomenological theory the crystal field successfully describes the static and dynamic magnetic properties of these systems. On the other hand the microscopic origin of the crystal field in metals is not yet fully understood. However, recent years have seen some of the areas of crystal-field effects mature to the point that they should be summarized and brought to the active notice of a larger audience. In addition, a number of exciting developments have occured which deserve attention. This book contains 13 invited and 45 contributed papers pres­ ented at the 2nd international conference on crystal-field effects in metals and alloys held at ZUrich, Switzerland, September 1-4, 1976. Emphasis was placed on the following specific categories of interest: spin waves and excitons, soft modes and critical effects, magnetic properties, physical properties influenced by crystal­ field effects, actinides and valency. Because the conference was relatively small, about 120 participants, and because the topic was relatively narrow, recent work in the field could be treated thor­ oughly and the present state of knowledge assessed comprehensively.

The idea of this conference grew out of the rapidly increas­ ing volume of experimental facts. and theoretical concepts related to the problem of crystal-field effects in metals and alloys. The crystal field plays an important role in the understanding of the energetic level structure of ions in condensed matter. In partic­ ular, the magnetic properties of rare earth metals and alloys are strongly influenced by the crystal field. In the phenomenological theory the crystal field successfully describes the static and dynamic magnetic properties of these systems. On the other hand the microscopic origin of the crystal field in metals is not yet fully understood. However, recent years have seen some of the areas of crystal-field effects mature to the point that they should be summarized and brought to the active notice of a larger audience. In addition, a number of exciting developments have occured which deserve attention. This book contains 13 invited and 45 contributed papers pres­ ented at the 2nd international conference on crystal-field effects in metals and alloys held at ZUrich, Switzerland, September 1-4, 1976. Emphasis was placed on the following specific categories of interest: spin waves and excitons, soft modes and critical effects, magnetic properties, physical properties influenced by crystal­ field effects, actinides and valency. Because the conference was relatively small, about 120 participants, and because the topic was relatively narrow, recent work in the field could be treated thor­ oughly and the present state of knowledge assessed comprehensively.

This volume provides a topical survey of the static and dynamic properties of hydrogen in both metallic and inorganic materials studied by neutron scattering which has been the key technique in this field for a long time. The static aspects deal with the localization of hydrogen in a variety of materials including the technically important metal hydrides, zeolites, and superionic conductors. The dynamic aspects concentrate on local modes, hydrogen bonds, tunneling, and diffusion. All these topics are thoroughly introduced, methodically discussed, and highlighted with recent experimental results by acknowledged experts.