Lattice disorder and magnetism in f-electron intermetallics

摘要

Real materials can have real differences compared to ideal systems. For instance, non-Fermi liquid (NFL) behavior was initially thought to be due to chemical disorder, since the first such materials were all substituted. Although several nominally well-ordered NFLs have been discovered and extensively studied, the effect of disorder on the magnetic properties of f-electron intermetallic systems remains poorly understood. Disorder in NFL systems is reviewed from an experimental, local structure point of view, including a discussion of results on the nominally ordered U3Ni3Sn4 and CeCOIn5 systems, and the chemically disordered UCu4Pd and CeRhRuSi2 systems. (C) 2004 Elsevier B.V. All rights reserved.