Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmmm.2008.01.049
Title: Field-dependent evolution of magnetic states in Co ring arrays
Authors: Wang, C.C. 
Wang, J. 
Adeyeye, A.O. 
Singh, N.
Keywords: Magnetization reversal process
MFM
MRAM
Ring
Issue Date: Jun-2008
Source: Wang, C.C., Wang, J., Adeyeye, A.O., Singh, N. (2008-06). Field-dependent evolution of magnetic states in Co ring arrays. Journal of Magnetism and Magnetic Materials 320 (11) : 1781-1786. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2008.01.049
Abstract: We present a systematic study of field-dependent evolution in the magnetization reversal process of elongated Co ring arrays using in-situ field magnetic force microscopy. We observed that, the rings typically undergo a uniform→onion→vortex→reverse onion→reverse uniform spin-state transition as the field is swept along the major axis of the rings. However, the switching field distribution in the arrays generally leads to each transition occupying a wide range of fields, which results in the observation of coexistence of different magnetization states at lower field. The magnetization reversal sequence has also been verified by micromagnetic simulations, which show good agreement with our experimental data. © 2008 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/56057
ISSN: 03048853
DOI: 10.1016/j.jmmm.2008.01.049
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