High Curie Temperature and Possible Canted Magnetism in Free Gd Clusters
- 19 July 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (3), 532-535
- https://doi.org/10.1103/physrevlett.83.532
Abstract
The magnetic properties of free clusters ( , 21, and 22) have been measured between 90 and 600 K in a Stern-Gerlach experiment. and are found to be superparamagnetic (SP) whereas is not. Within the SP model, the magnetic moment per atom at 100 K is for and for , lower than the bulk value, . We measure Curie temperatures of for and over 500 K for , significantly higher than 293 K, the bulk value. A canted magnetic moment model is compatible with the experimental data.
Keywords
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