| Issue |
Europhys. Lett.
Volume 44, Number 1, October I 1998
|
|
|---|---|---|
| Page(s) | 98 - 102 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00441-9 | |
| Published online | 01 September 2002 | |
Magnetic ordering in a supercooled Co-Pd melt studied by muon-spin rotation
1
Paul Scherrer Institut - CH-5232 Villigen PSI, Switzerland
2
Institut für Strahlen- und Kernphysik, Universität Bonn - D-53115 Bonn, Germany
3
Institut für Raumsimulation, Deutsches Zentrum für Luft- und Raumfahrt D-51140 Köln, Germany
Received:
26
March
1998
Accepted:
6
August
1998
Liquid samples of 
were cooled below their
liquidus temperature Tl and supercooled towards the
paramagnetic-ferromagnetic transition temperature 
by means
of the Electromagnetic Levitation (EML) technique. Muon-Spin
Rotation (
) measurements were used to determine the spin
precession frequency f and the transverse muon-spin relaxation
rate Γ in the liquid supercooled sample at temperatures 
. Γ increases by a factor of 5 when T approaches
, indicating large spin fluctuations caused by the onset of
spontaneous magnetization. The temperature dependence of the
inverse frequency shift 
reflects a Curie-Weiss
behaviour of the paramagnetic susceptibility. The experiments
strongly suggest the existence of ferromagnetic ordering in a
liquid metal.
PACS: 75.50.Mm – Magnetic liquids / 75.90.+w – Other topics in magnetic properties and materials / 76.75.+i – Muon spin rotation and relaxation
© EDP Sciences, 1998
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