A multiband magneto-dielectric resonator antenna with cylindrical geometry is proposed in this paper. The composed of yttrium iron garnet (YIG) chemical composition Y3Fe2(FeO4)3. final structure built on a low-cost FR4 dielectric substrate. With only one resonator, the able to resonate three distinct controlled frequency bands. These are propagation modes HEM11δ, TE01δ, and TM01δ, which possibl...

A magnetic field tunable, broadband, low-loss, negative refractive index metamaterial is fabricated using yttrium iron garnet (YIG) and a periodic array of copper wires. The tunability is demonstrated from 18 to 23GHz under an applied magnetic field with a figure of merit of 4.2GHz/kOe. The tuning bandwidth is measured to be 5GHz compared to 0.9GHz for fixed field. We measure a minimum insertio...

2014 The volume anomaly 0394V/V due to the magnetic energy corresponding to the exchange interactions is experimentally determined for YIG. The experimental values (from 77 K to Tc) agree with the values deduced from the theoretical expression based on the Néel’s theories of volume anomaly and of ferrimagnetism. These results are compared with those obtained by other authors on ferromagnetic an...

The thermodynamics of irreversible processes in continuous media predicts the existence of a magnetic Nernst effect that results from a magnetic analog to the Seebeck effect in a ferromagnet and magnetophoresis occurring in a paramagnetic electrode in contact with the ferromagnet. Thus, a voltage that has DC and AC components is expected across a Pt electrode as a response to the inhomogeneous ...

In a structure of an epitaxial film yttrium iron garnet (YIG) with crystallographic orientation (111) 11.8 μm thick and 5 nm platinum (Pt) deposited on its surface, the effect EMF generation in during propagation magnetostatic waves (MSW) was studied at values tangential constant magnetic field H less than saturation H_s~65 Oe YIG film. The experiments were performed geometry where parallel to ...