Regensburg 2010 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 33: Poster II
MA 33.12: Poster
Freitag, 26. März 2010, 11:00–14:00, Poster B1
Electrodeposited Fe(100−x)Gax thin films with high magnetostriction — •Diana Iselt1,2, Heike Schlörb1, Sebastian Fähler1, and Ludwig Schultz1,2 — 1IFW Dresden, Institute for Metallic Materials, Helmholtzstr. 20, 01069 Dresden — 2TU Dresden, Faculty of Mechanical Engineering, 01062 Dresden
Magnetostrictive materials can be used to build up electromagnetic sensing and actuating devices. A promising candidate to overcome the mechanical limitations of Terfenol-D is Fe(100−x)Gax with 15 to 25 at.% Ga, which shows a high mechanical strength and low saturation fields. For the application as sensors thin films, ribbons and nanowires need to be produced in a cheap way over large areas. In this study a suitable deposition process for Fe-Ga alloy thin films has been developed using electrochemical pulse plating. By optimising the deposition parameters such as electrolyte composition, deposition potential, deposition time and pulse sequences, homogeneous (110)-oriented thin films with low oxygen content have been prepared. Preliminary investigations of magnetic properties correlated to magnetostriction will be presented and discussed in sense of shape anisotropy.