Giant magnetostriction on Fe[sub 85]Ga[sub 15] stacked ribbon samples

Liu, G. D.; Liu, L. B.; Liu, Z. H.; Zhang, M.; Chen, J. L.; Li, J. Q.; Wu, G. H.; Li, Y. X.; Qu, J. P.; Chin, T. S.
March 2004
Applied Physics Letters;3/22/2004, Vol. 84 Issue 12, p2124
Academic Journal
Large magnetostrictions of -1300 and +1100 ppm related in the different directions have been obtained in our stacked Fe[sub 85]Ga[sub 15] ribbon samples. In the case of non-180° domain magnetization in the high anisotropic samples, the magnetostrictions are mainly attributed to the existence of Ga clusters which preferentially orient with the ribbon normal due to the ribbon grain texturing. Forming the modified DO[sub 3] structure, the Ga–Ga atom pairs distribute in the matrix and cause the x-ray diffraction peak split in melt-spun ribbons. As a special micromorphology, Ga clusters highly condensed in some nanoscale dots have also been experimentally observed. © 2004 American Institute of Physics.


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