✦ LIBER ✦

Antiferromagnetism and crystal-field effects in polycrystal CePd2Al3

✍ Scribed by S.A.M. Mentink; N.M. Bos; G.J. Nieuwenhuys; A.A. Menovsky; J.A. Mydosh

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 257 KB
Volume: 186-188
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(93)90615-d

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✦ Synopsis

We present an experimental study of the structural and magnetic properties of various polycrystalline samples of the new heavy-fermion antiferromagnet CePd2AI3, T N = 2.7 K. The relevant energy scales of the Kondo effect and crystal-field splitting are determined by comparing them with nonmagnetic LaPdzAl 3. The critical dependence of the magnetic properties of rare-earth heavy-fermions on sample preparation is discussed using Doniach's Kondo lattice model.

Recent studies, by several research groups, of cerium-and uranium-based intermetallic compounds, crystallizing in ternary (dis)ordered variants of the hexagonal CaCu 5 structure type (the so-called '1-5 compounds') have greatly enriched the field of heavyfermion (HF) physics. These studies culminated in the discovery of two new HF superconductors, UNi2AI 3

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