Ferromagnetic resonance investigation in as-prepared NiFe/FeMn/NiFe trilayer

Journal Article · Fri Jun 01 04:00:00 EDT 2007 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2738387· OSTI ID:20979418

Yuan, S J; Xu, K; Yu, L M; Cao, S X; Jing, C; Zhang, J C ^[1]

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1. Department of Physics, Shanghai University, Shanghai 200444 (China)

NiFe/FeMn/NiFe trilayer prepared by dc magnetron sputtering was systematically investigated by ferromagnetic resonance technique (FMR) at room temperature. For NiFe/FeMn/NiFe trilayer, there are two distinct resonance peaks both in in-plane and out-of-plane FMR spectra, which are attributed to the two NiFe layers, respectively. The isotropic in-plane resonance field shift is negative for the bottom NiFe layer, while positive for the top NiFe layer. And, such phenomena result from the negative interfacial perpendicular anisotropy at the bottom NiFe/FeMn interface and positive interfacial perpendicular anisotropy at the top FeMn/NiFe interface. The linewidth of the bottom NiFe layer is larger than that of the top NiFe layer, which might be related to the greater exchange coupling at the bottom NiFe/FeMn interface.

• OSTI ID: 20979418
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 101; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
BINARY ALLOY SYSTEMS
DEPOSITION
ELECTRONS
EXCHANGE INTERACTIONS
FERROMAGNETIC RESONANCE
INTERFACES
IRON ALLOYS
LAYERS
MANGANESE ALLOYS
NICKEL ALLOYS
SPUTTERING
TEMPERATURE RANGE 0273-0400 K