High field dilatation experiments on U(Pt0.95Pd0.05)3; Magnetic ordering versus heavy-fermion behavior

Autor: A.A. Menovsky, A. de Visser, P. van der Linden, J.J.M. Franse, Uli Zeitler, U. Wyder, H.P. van der Meulen, J.A.A.J. Perenboom
Přispěvatelé: WZI (IoP, FNWI)
Rok vydání: 1995
Předmět:
Zdroj: Physica B-Condensed Matter, 206-207, 437-440. Elsevier
Physica B-Condensed Matter, 206, 437-440
Physica B-Condensed Matter, 206, pp. 437-440
ISSN: 0921-4526
Popis: A still open question is whether long-range magnetic ordering as observed in some heavy fermion (HF) systems is intimately related to the HF state or is an extra phenomenon interacting with it. This problem might be addressed by studying the compound U(Pt0.95Pd0.05)3. Doping UPt3 with 5% Pd induces long range antiferromagnetic order (LRAFO) which coexists with the heavy-fermion (HF) behavior. We present thermal expansion and magnetostriction data on U(Pt0.95Pd0.05)3 along all three crystallographic axes in magnetic fields ( B¶a- axis ) up to 17 T and the temperature range 1.5–12 K covering the critical fields and temperatures of both the LRAFO (TN = 5.8 K, BAF = 13 T) and the HF state ( T ∗ ≈ 8.2 K , B ∗ ≈ 12 T ). We observe features related to the HF-behaviour and to the LRAFO separately, but also features which we interpret as originating from the interaction between LRAFO and HF-behaviour.
Databáze: OpenAIRE