Tagged Magnetic Resonance Imaging (MRI) is a noninvasive technique for examining myocardial function and deformation. Tagged MRI can also be used in quasi-static MR elastography to acquire strain maps of other biological soft tissues. Harmonic phase (HARP) provides automatic and rapid analysis of tagged MR images for the quantification and visualization of myocardial strain. We propose a new ar...

Thermally evaporated 50-nm nickel thin films coated on borosilicate glass substrates were nanostructured by excimer laser (0.5 J/cm(2), single shot), DC electric field (up to 2 kV/cm) and trench-template assisted technique. Nanoparticle arrays (anisotropic growth features) have been observed to form in the direction of electric field for DC electric field treatment case and ruptured thin film (...

The ac susceptibility and magnetization curves of a glued Dy(2)O(3) powder sample are measured by an ac susceptometer and a dc superconducting quantum interference device magnetometer, both of which have been calibrated previously. It is shown that the magnetic moment of the paramagnetic sample as a function of field and temperature may be accurately expressed by a combination of the Curie-Weis...

We have observed large discrepancies between the dc magnetization and ferromagnetic resonance (FMR) magnetic anisotropy in Mo-Ni superlattices. We show that higher-order anisotropy is present in both measurements and develop an analysis by which the first-order and second-order energies can be treated independently. The low-temperature results show a systematic divergence of the first-order FMR...

A complete study of the ac response of Hg-based superconductors with 1, 2, and 3 Cu-O planes is presented. Under a dc field, the ac susceptibility xac(T) displays a double transition, which is argued to be of intrinsic nature. The systematic analysis of the evolution of xac ~fundamental and higher harmonics! as a function of the experimental parameters, and the comparison with resistance and dc...

Field cooled (FC) and zero field cooled (ZFC) magnetization measurements have been performed on amorphous Fego ( Z ~ , S C ~ ) , ~ ( x = 100,80,60,50,20,0 at% ) alloys. The time dependence of the thermoremanent magnetization has been studied up to 5 x lo5 s with a SQUID-magnetometer. Depending on the ratio of the Zr and Sc concentration different relaxation behavior in the low temperature SG-ph...

We present a multiterminal nanostructure for electrical probing of the quantum spin Hall effect QSHE in two-dimensional 2D topological insulators TIs . The device consists of a ferromagnetic FM island with precessing magnetization that pumps in the absence of any bias voltage pure spin current symmetrically into the left and right adjacent 2D TIs modeled as graphene nanoribbons with the intrins...

The spin glasses show intriguing characteristic features that are not well understood yet, as for instance its aging, rejuvenation and memory effects. Here a model based on stretched exponential decay of magnetization is proposed, which can describe the main magnetic observed in experiments time-decay thermoremanent magnetization, relaxation zero field cooled ac dc function temperature others. ...