In recent years, a low-dimensional model for thin magnetostrictive actuators that incorporated magneto-elastic coupling, inertial and damping effects, ferromagnetic hysteresis and classical eddy current losses was developed using energy–balance principles by Venkataraman and Krishnaprasad. This model, with the classical Preisach operator representing the hysteretic constitutive relation between...

Herein, the development and calibration of a macroscopic model for magneto-active elastomers based on data generated from computational homogenizations is presented. The advantage this strategy possibility to adjust independent any sample geometry. Using calibrated model, magnetostrictive magnetorheological effect samples are simulated within wide range magnetic fields.

The characteristics of confined magnetoelastic waves in nanoscale ferromagnetic magnetostrictive waveguides have been investigated by a combination analytical and numerical calculations. presence both magnetostriction inverse leads to the coupling between spin elastic Lamb waves. Numerical simulations coupled system used extract dispersion relations as well their mode profiles.

The ability to tune both magnetic and electric properties in magnetoelectric (ME) composite heterostructures is crucial for multiple transduction applications including energy harvesting or magnetic field sensing, or other transduction devices. While large ME coupling achieved through interfacial strain-induced rotation of magnetic anisotropy in magnetostrictive/piezoelectric multiferroic heter...

Textured polycrystalline Fe-Ga alloys exhibit magnetostrictive strains of 100 ppm or greater and may function as a mechanically robust actuator/sensing material. Current efforts seek to combine the 300+ ppm magnetostrictive strain performance of [100] oriented single crystals with the mechanical properties of polycrystalline forms. One approach to combining these properties is to control the cr...

Title of Dissertation: Domain Wall Engineering of Nanoscale Ferromagnetic Elements and its Application for Memory Devices Sylvia H. Flórez, Doctor of Philosophy, 2006 Dissertation directed by: Professor R.D. Gomez Department of Electrical and Computer Engineering This thesis concerns the interaction of spin polarized electrons with the local magnetic moments in nanopatterned metallic systems. W...