Statics and dynamics in giant magnetostrictive ...
Document type :
Compte-rendu et recension critique d'ouvrage
DOI :
Title :
Statics and dynamics in giant magnetostrictive Tbx/Fe(1-x)/-Fe0.6Co0.4 multilayers for MEMS
Author(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]
Journal title :
IEEE Transactions on Magnetics
Pages :
2817-2819
Publisher :
Institute of Electrical and Electronics Engineers
Publication date :
2002-09
ISSN :
0018-9464
English keyword(s) :
giant magnetostriction
thin films
multilayer
spin reorientation transition
dynamics
actuators
thin films
multilayer
spin reorientation transition
dynamics
actuators
HAL domain(s) :
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
English abstract : [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 ...
Show more >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.Show less >
Show more >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.Show less >
Language :
Anglais
Popular science :
Non
Source :
Files
- https://hal.archives-ouvertes.fr/hal-02973224/document
- Open access
- Access the document
- https://hal.archives-ouvertes.fr/hal-02973224/document
- Open access
- Access the document
- https://hal.archives-ouvertes.fr/hal-02973224/document
- Open access
- Access the document
- document
- Open access
- Access the document
- AS05.pdf
- Open access
- Access the document