Abstract Artificial spin ices (ASIs) are magnetic metamaterials comprising geometrically tiled strongly-interacting nanomagnets. There is significant interest in these systems spanning the fundamental physics of many-body to potential applications neuromorphic computation, logic, and recently reconfigurable magnonics. Magnonics focused studies on ASI have date in-field GHz spin-wave response, c...

We explored the possibility of Pr-Fe-B and (Pr0.75Ce0.25)-Fe-B based hot-deformed magnets as magnetic field source for cryogenic refrigeration. Thanks to elimination spin reorientation effect in rare earth (RE)-Fe-B system, magnet shows a large remanence µ0Mr = 1.75 T with coercivity 7.4 at 20 K. To our surprise, even higher 1.76 4.8 The measured maximum energy product anisotropic is 612 kJ/m3 ...

L a substituted polycrystalline Y,.,LaXFe5C),2 (x 0.0 0.5) garnets were manufactured by ceramic method and the structure and magnetic properties of the garnets were studied by X-ray diffractometry, magnetometry , ferromagnetic resonance and permittivity and permeability measurement. Saturation magnetization and Curie temperature of the garnets increase slightly with increasing La content. Reson...

[Fe (tFe) nm/Cu (tCu) nm]N multilayer films were prepared using pulsed-current electrodeposition method. The role of the pulsed-current deposition and Fe and Cu layer thicknesses on the magnetic properties was investigated. The microstructure of the multilayer films is dependent on the thicknesses of both the Fe and Cu layers. The saturation magnetization of the multilayers strongly correlated ...

The magneto-transport of a superconducting/ferromagnetic hybrid structure, consisting of a superconducting thin film in contact with an array of magnetic nanodots in the so-called ‘magnetic vortex state’, exhibits interesting properties. For certain magnetic states, the stray magnetic field from the vortex array is intense enough to drive the superconducting film into the normal state. In this ...

Co2FeSi(100) films with L21 structure deposited onto MgO(100) were studied exploiting both longitudinal (LMOKE) and quadratic (QMOKE) magneto-optical Kerr effect. The films exhibit a huge QMOKE signal with a maximum contribution of up to 30mdeg, which is the largest QMOKE signal in reflection that has been measured thus far. This large value is a fingerprint of an exceptionally large spin-orbit...

Magnetization dynamics symmetry plays important roles in magnetization switching. Here we study magnetic field and spin torque induced magnetization switching. Spin moment transferring from polarized itinerant electrons to local magnetization provides a magnetization switching mechanism without using external magnetic field. Besides its importance in fundamental magnetization switching dynamics...

A nonconventional technique for the measurement of magnetic relaxation in superconducting films at short times (;10 s) is described. This technique combines the application of a pulsed magnetic field and a synchronized high-energy pulsed laser. Remanent magnetic relaxation in ~Y;Gd!Ba2Cu3O72d thin films is reported over five decades time at reduced temperatures above 0.8. © 1998 American Instit...