Dependence of magnetomechanical performance of CoGaxFe2-xO4 on temperature variation

TitleDependence of magnetomechanical performance of CoGaxFe2-xO4 on temperature variation
Publication TypeJournal Article
Year of Publication2011
AuthorsNlebedim IC, Melikhov Y, Snyder JE, Ranvah N, Moses AJ, Jiles DC
Journal TitleJournal of Applied Physics
Date Published04/01
Type of ArticleProceedings Paper
ISBN Number0021-8979
Accession NumberISI:000289949000292
Keywordsactuator applications, cobalt ferrite, SENSOR

The temperature dependence of the magnetoelastic properties of the CoGaxFe2-xO4 system (for x = 0.0, 0.2, and 0.4) has been studied. It has been shown that increase in temperature resulted in reduced magnetostrictive hysteresis. For both CoGa0.2Fe1.8O4 and CoGa0.4Fe1.6O4, the measured magnetostriction amplitudes were higher at 250 K than at 150 K. It was also shown that the temperature stability of magnetostriction in CoGa0.2Fe1.8O4 is higher than that of the other compositions studied which is important for sensor applications. The highest strain sensitivity was obtained for CoGa0.2Fe1.8O4 at 250 K. Results demonstrate the possibility of tailoring magnetomechanical properties of the material to suit intended applications under varying temperature conditions. (C) 2011 American Institute of Physics. [doi:10.1063/1.3540662]

URL<Go to ISI>://000289949000292
Alternate JournalJ. Appl. Phys.