Home 
Retrieve | Search
 
Issues
No.1(pp.1-51)
Home > Issues > Volume 14 (2009) > No.1(pp.1-51)
 
Magnetostatic Coupling Between two Nanowires of Different Width
Journal of Magnetics, Volume 14, Number 1, 31 Mar 2009, Pages 15-17
Han-Seok Lee(Institute of Physics and Applied Physics, Yonsei University), Seung-Ho Kim(Institute of Physics and Applied Physics, Yonsei University), Young-Wook Chang(Institute of Physics and Applied Physics, Yonsei University), Kyung-Hwa Yoo(Institute of Physics and Applied Physics, Yonsei University), J. Lee* (Institute of Physics and Applied Physics, Yonsei University)
Abstract
The magnetostatic interaction between the two magnetic nanowires was studied by using the longitudinal magneto-optical Kerr effect (MOKE). For this purpose two magnetic nanowires having different widths (400 nm, 800 nm) were fabricated on an Si substrate with electron beam lithography and the lift-off method. Magnetic hysteresis loops measured by MOKE showed double switching behavior, corresponding to the separated switching fields of each wire. The switching field of the narrow wire was greatly affected by the separation between the two wires. Based on how the switching field changes with decreasing separation, it is concluded that the magnetostatic field of the 800-nm wire strongly affects the switching of the 400-nm wire when the separation is less than 0.5μm.
Keywords: nanowire; anisotropy; magnetostatic interaction; MOKE
DOI: 10.4283/JMAG.2009.14.1.15
Full Text: PDF
 
Copyright(c) 2009 The Korean Magnetics Society All rights reserved. E-mail : komag@unitel.co.kr