| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1505487 | Solid State Sciences | 2011 | 7 Pages |
High-energy ball milling was employed to produce small particles of Gd5Si2Ge2. Magnetic and magnetocaloric properties of the ball-milled and bulk Gd5Si2Ge2 samples were investigated through the magnetization measurements. When compared to the bulk material, a significant decrease in saturation magnetization and magnetocaloric effect (- ΔSmax = 4 vs. 20 J/kgK for ΔH = 0–5 T) is observed even after the relatively short ball milling time of 4 h which produced particles with an average size of ca. 0.5 μm. The ball-milled samples appear to loose a first-order structural transition, present in bulk Gd5Si2Ge2, and display a superparamagnetic behaviour below the corresponding Curie temperatures.
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