The dynamic magnetostriction characteristics of an Fe-based nanocrystalline FeCuNbSiB alloy are investigated as a function of the dc bias magnetic field. The experimental results show that the piezomagnetic coefficient of FeCuNbSiB is about 2.1 times higher than that of Terfenol-D at the low dc magnetic bias Hdc = 46 Oe. Moreover, FeCuNbSiB has a large resonant dynamic strain coefficient at qui...

We study here, within the density-functional theory, the magnetic anisotropy energy ~MAE! in Ni2MnGa which is a prototype of a magnetic shape-memory alloy. We calculate the MAE, which is a key property for the magnetic shape-memory effect, for tetragonal structure with different ratios of the c and a lattice constants, reproducing the experimental easy axes both in compression and elongation of...

The remote control of the electrical conductance through nanosized junctions at room temperature will play an important role in future nano-electromechanical systems and electronic devices. This can be achieved by exploiting the magnetostriction effects of ferromagnetic materials. Here we report on the electrical conductance of magnetic nanocontacts obtained from wires of the giant magnetostric...

We report on neutron diffraction, thermal expansion, magnetostriction, dielectric, and specific heat measurements on polycrystalline FeCr2S4 in external magnetic fields. The ferrimagnetic ordering temperatures TC ≈ 170 K and the transition at TOO ≈ 10 K, which has been associated with orbital ordering, are only weakly shifted in magnetic fields up to 9 T. The cubic lattice parameter is found to...

We investigated the magnetoelastic properties of quasi-one-dimensional spin-$\frac{1}{2}$ frustrated magnet ${\mathrm{LiCuVO}}_{4}$. Longitudinal-magnetostriction experiments were performed at 1.5 K in high magnetic fields up to 60 T applied along $b$ axis, i.e., spin-chain direction. The magnetostriction data qualitatively resemble magnetization results, and saturate ${H}_{\text{sat}}\ensurema...

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.