FREQUENCY-DEPENDENCE OF THE PIEZOMAGNETIC STRAIN COEFFICIENT

Authors
REED IM GREENOUGH RD JENNER AGI
Citation
Im. Reed et al., FREQUENCY-DEPENDENCE OF THE PIEZOMAGNETIC STRAIN COEFFICIENT, IEEE transactions on magnetics, 31(6), 1995, pp. 4038-4040
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
31
Issue
6
Year of publication
1995
Part
2
Pages
4038 - 4040
Database
ISI
SICI code
0018-9464(1995)31:6<4038:FOTPSC>2.0.ZU;2-V
Abstract
The frequency dependence of the piezomagnetic strain coefficient (g(33 )) has been investigated through Plane Wave Model characterisation of a Terfenol-D sample. It is found to have a frequency dependence of 1/r oot omega with a corresponding frequency dependent loss term. It is pr oposed that this frequency dependence in g(33) is a consequence of the mechanical defects in the material which affect the magnetic properti es of the material through the magnetomechanical coupling k(33).