A short-circuited coplanar waveguide for low-temperature single-port ferromagnetic resonance spectroscopy set-up to probe the magnetic properties of ferromagnetic thin films

Abstract

A coplanar waveguide shorted in one end is proposed, designed, and implemented successfully to measure the properties of magnetic thin films as a part of the vector network analyzer ferromagnetic resonance (VNA-FMR) spectroscopy set-up. Its simple structure, potential applications and easy installation inside the cryostat chamber made it advantageous especially for low-temperature measurements. It provides a wide band of frequencies in the gigahertz range essential for FMR measurements. Our spectroscopy set-up with short-circuited coplanar waveguide has been used to extract Gilbert damping coefficient and effective magnetization values for standard ferromagnetic thin films like Py and Co. The thickness and temperature dependent studies of those magnetic parameters have also been done here for the afore mentioned magnetic samples.

References in corpus (6)

• Spin transfer torque devices utilizing the giant spin Hall effect of tungsten
• Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
• Precise determination of the spectroscopic g-factor using broadband ferromagnetic resonance spectroscopy
• Critical current of spin transfer torque-driven magnetization dynamics in magnetic multilayers
• Microwave magnetic dynamics in ferromagnetic metallic nanostructures lacking inversion symmetry
• Development of planar microstrip resonators for electron spin resonance spectroscopy