Zeitschrift für Physik B Condensed Matter

ISSN: 0722-3277 (printed version)
ISSN: 1431-584X (electronic version)

Table of Contents

Abstract Volume 100 Issue 3 (1996) pp 343-346

AC-susceptibility measurements under high pressure for the determination of the magnetic phase diagrams of heavy-fermion compounds: ferromagnetic CePd₂Ga₃ and antiferromagnetic CePd₂Al₃

A. Drechsler, A. Eichler

Institut für Technische Physik, Technische Universität Braunschweig, Postfach 3329, D-38023 Braunschweig, Germany

Received: 22 August 1995

Abstract. A conventional setup for the determination of magnetic ac-susceptibilities has been adapted to a piston-cylinder high pressure technique in order to serve as a quick and sensitive method to investigate magnetic phase diagrams. It can be used under pressures up to 1 GPa and at temperatures from 1.2 to 15 K. An application to isostructural heavy-fermion compounds of the CePd₂M₃ system has demonstrated that both ferromagnetic (CePd₂Ga₃, T_C\cong6.3 K) and antiferromagnetic transitions (CePd₂Al₃, T_N\cong2.5 K) can be observed over the entire pressure range. In the Ga compound T_C is lowered by pressure, the slope increasing beyond 0.3 GPa. In CePd₂Al₃, on the other hand, the variation of T_N is nonmonotonic, reaching its maximum value close to 0.5 GPa.

PACS: 75.30.K; 75.30.M; 07.35

Article in PDF-Format
Article in (gzipped) PS-Format

Last change: March 9, 1997
helpdesk@link.springer.de
© Springer Berlin Heidelberg 1996