نتایج جستجو برای: magnetoelastic wave
تعداد نتایج: 218863 فیلتر نتایج به سال:
This paper presents the design and evaluation of magnetoelastic sensors intended for wireless monitoring of tissue accumulation in peripheral artery stents. The sensors are fabricated from 28 μm thick foils of magnetoelastic 2826MB MetglasTM, an amorphous Ni–Fe alloy. The sensor layer consists of a frame and an active resonator portion. The frame consists of 150 μm wide struts that are patterne...
In the rare-earth pyrochlore ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$, there are strong interactions between crystal field and phonon excitations resulting in hybridization of with both acoustic optical excitations, which may be implicated its evasion expected long-range ordered states. The magnetoelastic coupling mechanisms thought to involve large quadrupolar matrix elements state...
The theory o f dynamical magnetoelasticity in the hexagonal Belorizky model is presented in this paper. We show that the interaction o f spins with lattice vibrations gives rise to multiaxis anisotropic biquadratic exchange. It is shown that this anisotropy favours some directions and can stabilize three-sublattice ordering o f the system. Formulae for low-temperature spin wave spectra were obt...
We report on strongly anisotropic thermal-expansion and magnetostriction of UNiAl and UCoAl within the frame of the 5f -electron magnetism. Both the compounds crystallize in the hexagonal ZrNiAl-type structure and exhibit huge magnetocrystalline anisotropy with the c-axis as the easy magnetization direction. UNiAl orders antiferromagnetically (TN ≈ 19 K) and exhibits a field-induced metamagneti...
We address the cross-effects between mechanical strains and magnetic fields on the plastic response of magnetoelastic amorphous solids. It is well known that plasticity in nonmagnetic amorphous solids under external strain γ is dominated by the codimension-1 saddle-node bifurcation in which an eigenvalue of the Hessian matrix vanishes at γP like √ γP − γ. This squareroot singularity determines ...
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