American Institute of Physics, Applied Physics Letters, 10(77), p. 1502
DOI: 10.1063/1.1290694
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Magnetostriction measurements have been made in an ordered Fe 3 Pt single crystal with degree of order of about 0.8, which exhibits a cubic-tetragonal martensitic transformation at 97 K. The specimen was cooled down to 4.2 K without magnetic field, and then a magnetic field of 4 T is applied to the specimen along <001> at 4.2 K and removed. As a result, a reversible giant magnetostriction of about 0.5% is observed. This reversible magnetostriction will be caused by the rearrangement of crystallographic domains, being three times as large as that of Terfenol-D ( Fe 2 Dy x Tb 1-x: typical magnetostrictive materials). © 2000 American Institute of Physics.