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Title: Magnetic field dependence of the lowest-frequency edge-localized spin wave mode in a magnetic nanotriangle
Authors: Lin, C.S.
Lim, H.S. 
Wang, Z.K. 
Ng, S.C. 
Kuok, M.H. 
Adeyeye, A.O. 
Keywords: Edge modes
Spin waves
Triangular nanomagnet
Issue Date: Mar-2011
Citation: Lin, C.S., Lim, H.S., Wang, Z.K., Ng, S.C., Kuok, M.H., Adeyeye, A.O. (2011-03). Magnetic field dependence of the lowest-frequency edge-localized spin wave mode in a magnetic nanotriangle. Journal of Nanoscience and Nanotechnology 11 (3) : 2615-2618. ScholarBank@NUS Repository.
Abstract: An understanding of the spin dynamics of nanoscale magnetic elements is important for their applications in magnetic sensing and storage. Inhomogeneity of the demagnetizing field in a non-ellipsoidal magnetic element results in localization of spin waves near the edge of the element. However, relative little work has been carried out to investigate the effect of the applied magnetic fields on the nature of such localized modes. In this study, micromagnetic simulations are performed on an equilateral triangular nanomagnet to investigate the magnetic field dependence of the mode profiles of the lowest-frequency spin wave. Our findings reveal that the lowest-frequency mode is localized at the base edge of the equilateral triangle. The characteristics of its mode profile change with the ground state magnetization configuration of the nanotriangle, which, in turn, depends on the magnitude of the in-plane applied magnetic field. © 2011 American Scientific Publishers.
Source Title: Journal of Nanoscience and Nanotechnology
ISSN: 15334880
DOI: 10.1166/jnn.2011.2708
Appears in Collections:Staff Publications

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