MAGNETIC INSTABILITY IN CE HEAVY FERMION COMPOUNDS

[摘要] Different types of cerium heavy fermion compounds are discussed: cubic antiferromagnetic ground states (CeAl2, CePb3, Celn3) and Pauli paramagnetic ground states (CeSn3, CeRu2Si2). Applying external variables such as pressure or magnetic field restores a localized Fermi liquid state. Special attention is paid to CeRu2Si2 which is approaching a singular magnetic instability for T --> 0. Comparison between pressure and alloying effects emphasize the important role of the itineracy of the 4f electrons at the magnetic instability.

[发布日期] 1990-12-01

[效力级别]  Proceedings Paper