Statics and dynamics in giant magnetostrictive ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Statics and dynamics in giant magnetostrictive Tbx/Fe(1-x)/-Fe0.6Co0.4 multilayers for MEMS
Auteur(s) :
Youssef, Jamal Ben [Auteur]
Laboratoire de magnétisme de Bretagne [LMB]
Tiercelin, Nicolas [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Petit, Fabienne [Auteur]
Gall, Henri Le [Auteur]
Laboratoire de magnétisme de Bretagne [LMB]
Preobrazhensky, Vladimir [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Pernod, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Laboratoire de magnétisme de Bretagne [LMB]
Tiercelin, Nicolas [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Petit, Fabienne [Auteur]
Gall, Henri Le [Auteur]
Laboratoire de magnétisme de Bretagne [LMB]
Preobrazhensky, Vladimir [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Pernod, Philippe [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Titre de la revue :
IEEE Transactions on Magnetics
Pagination :
2817-2819
Éditeur :
Institute of Electrical and Electronics Engineers
Date de publication :
2002-09
ISSN :
0018-9464
Mot(s)-clé(s) en anglais :
giant magnetostriction
thin films
multilayer
spin reorientation transition
dynamics
actuators
thin films
multilayer
spin reorientation transition
dynamics
actuators
Discipline(s) HAL :
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
Sciences de l'ingénieur [physics]
Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]
Sciences de l'ingénieur [physics]/Matériaux
Résumé en anglais : [en]
In the present paper, giant magnetostric-tive thin films have been investigated for future micro-electromechanical systems (MEMS) purposes. For this goal, flexural and torsional motions have been studied in low field ...
Lire la suite >In the present paper, giant magnetostric-tive thin films have been investigated for future micro-electromechanical systems (MEMS) purposes. For this goal, flexural and torsional motions have been studied in low field anisotropic giant magnetostrictive (GMS) single domain state (SDS) exchange-coupled TbFe/FeCo multilay-ers (ECML). The magnetoelastic (ME) coefficient b γ,2 depend strongly on the ECML structures, compositions, and sputtering deposition parameters. Giant magnetostrictive Multilayers with a high b γ,2 (18M P a for T bF e 2 /F e 0.6 Co 0.4 compared to 11M P a for T bF e 2 /F e) were obtained with or without an in-plane easy axis with a controlled direction, and without any annealing post-process. Dynamical excita-tions of the actuators have been investigated under various conditions. An enhancement up to a factor 5 of the oscillations compared to the TbFe/Fe multilayers is observed with the possibility to tune the flexural/torsional dynami-cal behavior of these cantilevers. The corresponding very large dynamical ME susceptibility of these improved uni-axial ECML gives the possibility to control GMS MEMS with further reduction of the excitation field down to a few oersteds.Lire moins >
Lire la suite >In the present paper, giant magnetostric-tive thin films have been investigated for future micro-electromechanical systems (MEMS) purposes. For this goal, flexural and torsional motions have been studied in low field anisotropic giant magnetostrictive (GMS) single domain state (SDS) exchange-coupled TbFe/FeCo multilay-ers (ECML). The magnetoelastic (ME) coefficient b γ,2 depend strongly on the ECML structures, compositions, and sputtering deposition parameters. Giant magnetostrictive Multilayers with a high b γ,2 (18M P a for T bF e 2 /F e 0.6 Co 0.4 compared to 11M P a for T bF e 2 /F e) were obtained with or without an in-plane easy axis with a controlled direction, and without any annealing post-process. Dynamical excita-tions of the actuators have been investigated under various conditions. An enhancement up to a factor 5 of the oscillations compared to the TbFe/Fe multilayers is observed with the possibility to tune the flexural/torsional dynami-cal behavior of these cantilevers. The corresponding very large dynamical ME susceptibility of these improved uni-axial ECML gives the possibility to control GMS MEMS with further reduction of the excitation field down to a few oersteds.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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