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Inhomogeneities in spin states and magnetization reversal of geometrically identical elongated Co rings
 

Summary: Inhomogeneities in spin states and magnetization reversal of geometrically
identical elongated Co rings
X. S. Gao
Singapore-MIT Alliance, National University of Singapore, 4 Engineering Drive 3, Singapore 117576,
Singapore
A. O. Adeyeyea
and S. Goolaup
Information Storage Materials Laboratory, Department of Electronic and Computer Engineering,
National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
N. Singh
Institute of Microelectronics, Singapore Science Park II, II Science Park Road, Singapore 117685,
Singapore
W. Jung, F. J. Castaņo, and C. A. Ross
Department of Materials Science and Engineering, Massachusetts Institute of Technology,
Cambridge, Massachusetts 02139
Presented on 9 January 2007; received 1 November 2006; accepted 9 November 2006;
published online 10 April 2007
The magnetic configurations and magnetic reversal processes in arrays of geometrically identical
rounded rectangular Co rings have been investigated. Magnetic imaging reveals a range of
configurations, including diagonal onion, horseshoe onion, and vortex states. Reversal from the

  

Source: Adeyeye, Adekunle - Department of Electrical and Computer Engineering, National University of Singapore

 

Collections: Physics; Materials Science