Role of the spin-orbit coupling on the effective damping parameter in Y3Fe5O12/(Ag,W) bilayers explored through magnetoimpedance effect

Directional Field-Dependence of Magnetoimpedance Effect on Integrated YIG/Pt-Stripline System

“…It is worth remarking that part of the difficulty in obtaining MI results in YIG samples resides in the high resistivity of the material. Nevertheless, recently, it has been shown that the growth of YIG/NM heterostructures, where NM is a non-ferromagnetic metal such as Ag, Cu, and W [ 30 , 31 ], may act as a way to circumvent this adversity and perform investigations on magnetization dynamics through the MI effect in the low frequency regime. In these previous works, the YIG/NM heterostructures were entirely produced by using the Magnetron Sputtering technique.…”

“…The magnetization dynamics in YIG films have been extensively probed through broadband ferromagnetic resonance in recent years; but the link between FMI materials and MI experiments remained elusive until recently [28][29][30][31]. With this spirit, connecting YIG and MI, Kang and coworkers [28], for instance, have addressed the dynamics in YIG spheres and a single-crystalline YIG film deposited by using liquid phase epitaxy.…”

Magnetoimpedance of Epitaxial Y3Fe5O12 (001) Thin Film in Low-Frequency Regime

“…15−19 The MI strip coil method enables the probing of magnetization dynamics in insulators without the need of any additional metal layer. 18,19 Since the strip coil geometry is fixed, it can easily be used to compare different samples irrespective of the geometry of any metal layer strip deposited on top of the sample. Further, the change in the line shape due to the phase difference between the rf electric and magnetic fields inside a conductor can also be avoided using the MI-strip coil method.…”

Modulation of the magnetoimpedance effect of ZnO:Ag/NiFe heterostructures by thermal annealing

“…Magnetoimpedance (MI) has provided in the last decades new roads to technological applications [1][2][3][4] . Further, it also represents an important tool to understand the basic physical properties of the magnetization dynamics in films and heterostructures 5,6 . Specifically, MI corresponds to the change of the complex electrical impedance (Z = R + iX) of a magnetic material submitted to an external magnetic field 7,8 .…”

“…Among the different geometries, planar heterostructures consisting of a bilayer with a magnetic material and a non-magnetic metal/semiconductor have been drawing considerable attention due to the perspective of application in spintronics 12,13 . One of the most paradigmatic materials in this field is Y3Fe5O12 (YIG), a ferrimagnetic insulator that, when capped by a non-magnetic metal with high spin-orbit coupling, enables the evaluation of pure spin-current effects in films with bilayer geometry 5,6 .…”