We analyze the peculiarities of the magnetic dynamics of MTJs with a composite free layer. The composite magnetic layer consists of two half-ellipses separated by a non-magnetic spacer. We show that the switching barrier in these MTJs becomes practically equal to the thermal stability barrier. We investigate the dependence of the switching time and thermal stability on the geometry of these MTJ...

the finite element method is employed for the flexural-torsional linear buckling analysis of beams of arbitrarily shaped composite cross-section taking into account generalized warping (shear lag effects due to both flexure and torsion). the contacting materials, that constitute the composite cross section, may include a finite number of holes. a compressive axial load is applied to the beam. the...

This paper studies mechanical buckling of functionally graded beams subjected to axial compressive load that is simply supported at both ends lies on a continuous elastic foundation. The displacement field of beam is assumed based on EngesserTimoshenko beam theory. Applying the Hamilton's principle, the equilibrium equation is established. The influences of dimensionless geometrical parameter, ...