Magnetomechanical properties of single crystal Terfenol-D

Simon Busbridge, L.Q. Meng, G.H. Wu, B.W. Wang, Y.X. Li, S.X. Gao, C. Cai, W.S. Zhan

Research output: Contribution to journalArticle

Abstract

Quasi-static and dynamic magnetomechanical measurements have been made on a twin-free ⟨111⟩ oriented single crystal of Tb0.27Dy0.73Fe2 (Terfenol-D). Unusually large values of dynamic strain coefficient, d33, and magnetomechanical coupling coefficient, k33, of 19.1 nm A-1 and 0.83 respectively were recorded with an oscillating field of amplitude 500 A m-1 rms at room temperature. The static magnetostriction saturated at 1688×10-6, however 90% of this strain was achieved with a field of 45 kA m-1. The strain versus magnetization curves exhibit unusually linear regions, allowing confirmation that 71° domain wall motion is primarily responsible for the high coupling coefficient of this material
Original languageEnglish
Pages (from-to)3823-3825
Number of pages3
JournalIEEE transactions on magnetics
Volume35
Issue number5
DOIs
Publication statusPublished - 1 Sep 1999

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    Busbridge, S., Meng, L. Q., Wu, G. H., Wang, B. W., Li, Y. X., Gao, S. X., Cai, C., & Zhan, W. S. (1999). Magnetomechanical properties of single crystal Terfenol-D. IEEE transactions on magnetics, 35(5), 3823-3825. https://doi.org/10.1109/20.800677