This chapter mentions articles with the description of the crystal fields (CEF) in rare-earth (RE) systems by Hutchings and Newman. It discusses the retarding effects that deal with the various physical effects caused by the crystal field splitting of the RE. The chapter discusses inelastic neutron scattering that is useful for studying the excitations of a system of interacting RE-ions. Possible new effects resulting from interactions other than the isotropic exchange interaction are also discussed in the chapter. There are a large number of theoretical and experimental investigations available that deal with cooperative phenomena in lattices of CEF-split ions. These cooperative phenomena are discussed that result from the mutual interactions among the RE-ions. The chapter focuses on two particular types of effective ion–ion interactions—namely, the isotropic exchange and the quadrupolar Coulomb interaction. The chapter discusses influence of impurities in lattices of crystal-field split ions.

Physikalische BlätterVolume 35, Issue 8 p. 382-384 LeserbriefeOpen Access Noch einmal: Briefwahl oder nicht?/Kommt zur Mitgliederversammlung!/Technikunterricht/Die neue Büste von Otto Hahn B. Schröder, B. Schröder Beide KaiserslauternSearch for more papers by this authorJ. Geiger, J. Geiger Beide KaiserslauternSearch for more papers by this authorProf. Dr. Peter Fulde, Prof. Dr. Peter Fulde MPI für Festkörperforschung, Postfach 800665, 7000 Stuttgart 80Search for more papers by this authorDr. Walter Franzbecker, Dr. Walter Franzbecker GH KasselSearch for more papers by this authorProf. Dr. Ernst Lamla, Prof. Dr. Ernst Lamla Herausgeber der Zeitschriften, physica didactica und technica didactica, z. Zt. Gastprofessor Am Kreuze 63, 3400 GöttingenSearch for more papers by this author B. Schröder, B. Schröder Beide KaiserslauternSearch for more papers by this authorJ. Geiger, J. Geiger Beide KaiserslauternSearch for more papers by this authorProf. Dr. Peter Fulde, Prof. Dr. Peter Fulde MPI für Festkörperforschung, Postfach 800665, 7000 Stuttgart 80Search for more papers by this authorDr. Walter Franzbecker, Dr. Walter Franzbecker GH KasselSearch for more papers by this authorProf. Dr. Ernst Lamla, Prof. Dr. Ernst Lamla Herausgeber der Zeitschriften, physica didactica und technica didactica, z. Zt. Gastprofessor Am Kreuze 63, 3400 GöttingenSearch for more papers by this author First published: August 1979 https://doi.org/10.1002/phbl.19790350813AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume35, Issue8August 1979Pages 382-384 RelatedInformation