Surface Magnetostriction Model for MagNEMS

• Authors: T. Szumiata , M. Gzik-Szumiata
• Languages of publication: EN

Abstracts

EN

In this work the influence of surface roughness on magnetostrictive nano-actuator parameters has been analyzed theoretically. A mechanical and magnetoelastic behavior of investigated cantilever bimorphic system has been described in the frame of the simple analytical model. Realistic material parameters have been incorporated into the model for high-magnetostrictive galfenol (Fe-Ga) thin films on silicon substrate. It has been shown that for 5 nm thick galfenol film a flat surface magnetostrictive effects modify the cantilever deflection and force only by 3%, whereas in the case of rough surface this influence increases to about 15%, when dimensions of roughness steps are comparable to the distances between them.

Keywords

EN

62.25.-g; 85.85.+j; 75.80.+q; 85.70.Ec; 68.35.-p

Discipline

• 85.85.+j: Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
• 62.25.-g: Mechanical properties of nanoscale systems(for structure of nanoscale systems, see 61.46.-w; for structural transitions in nanoscale materials, see 64.70.Nd; for electronic transport in nanoscale systems, see 73.63.-b)
• 85.70.Ec: Magnetostrictive, magnetoacoustic, and magnetostatic devices(for magnetostrictive transducers, see 43.38.Ct—in Acoustics Appendix)
• 75.80.+q: Magnetomechanical effects, magnetostriction(for magnetostrictive devices, see 85.70.Ec)
• 68.35.-p: Solid surfaces and solid-solid interfaces: structure and energetics

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 200-201

Dates

published

2014-07

Contributors

author

T. Szumiata

• Department of Physics, University of Technology and Humanities in Radom, Krasickiego 54, 26-600 Radom, Poland

author

M. Gzik-Szumiata

• Department of Physics, University of Technology and Humanities in Radom, Krasickiego 54, 26-600 Radom, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.126.200