Title :
Broadband ferromagnetic resonance spectroscopy of artificial spin ice permalloy structures
Author :
Zhou, X. ; Chua, G. ; Singh, N. ; Adeyeye, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
In this work, we have fabricated two types of artificial square spin ice structures and probed their dynamic behaviors using broadband ferromagnetic resonance (FMR) spectroscopy. We observed a drastic change in the resonance frequency at remanence state due to the modification of magnetization ground state comparing the two types of structures. The angular dependence of resonance frequencies in saturated state is also observed for both structures.
Keywords :
Permalloy; ferromagnetic materials; ferromagnetic resonance; ground states; remanence; FMR spectroscopy; Ni80Fe20; angular dependence; artificial spin ice permalloy structures; broadband ferromagnetic resonance spectroscopy; dynamic behaviors; magnetization ground state; remanence state; resonance frequency; Absorption; Broadband communication; Ice; Lattices; Magnetic resonance; Saturation magnetization;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157671
