Title :
Nonreciprocal Magnetostatic Wave Propagation in Micro-Patterned NiFe Thin Films
Author :
Hartman, Gregory C. ; Fitch, R. ; Yan Zhuang
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
Nonreciprocal magnetostatic wave propagation in micro-patterned Ni80Fe20 thin film has been investigated. The nonreciprocal devices consist of a set of coupled microstrip transmission lines acting as antennae on the top of the micro-patterned Ni80Fe20 films. The Ni80Fe20 films were structured into an array of rectangular prisms. Nonreciprocal wave propagation was observed in the patterned Ni80Fe20 film. Compared to the control device with a continuous Ni80Fe20 film, the micro-patterned Ni80Fe20 films led to a weaker non-reciprocity.
Keywords :
electromagnetic wave propagation; magnetic thin films; magnetostatic waves; microstrip lines; nickel compounds; transmission lines; Ni80Fe20; micropatterned thin films; microstrip transmission lines; nonreciprocal device; nonreciprocal magnetostatic wave propagation; rectangular prisms; Frequency modulation; Magnetic resonance imaging; Magnetization; Magnetostatic waves; Magnetostatics; Perpendicular magnetic anisotropy; Ferromagnetic resonance; NiFe; nonreciprocal; patterning; radio frequency;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2316260
