Open AccessMagnetic Properties of Co 2D Antidot Arrays with Hexagonal Holes Using Colloidal Crystal Template Method
Author(s) -
Hong-Fei Qi,
Dabo Liu,
Dai Songyan,
Tianmin Wang
Publication year - 2016
Publication title -
acta metallurgica sinica (english letters)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.594
H-Index - 33
eISSN - 2194-1289
pISSN - 1006-7191
DOI - 10.1007/s40195-016-0393-2
Subject(s) - coercivity , materials science , hexagonal crystal system , crystal (programming language) , template , colloid , colloidal crystal , nanotechnology , template method pattern , condensed matter physics , crystallography , chemical engineering , computer science , chemistry , physics , engineering , programming language
In this work, Co 2D antidot arrays with well-ordered hexagonal holes ranging in size from 1.3 to 6.2 μm were fabricated by colloidal crystal template method. The geometry configuration and magnetic properties of the samples were investigated. An enormous increase in coercivity and squareness, as compared with the corresponding continuous film, was observed. Magnetic properties of Co 2D antidot arrays showed a close dependence on pore diameter. According to geometric calculation, the effect of the pore diameter on magnetic properties was also discussed. The Co 2D antidot arrays obtained by this method are promising candidates for high-density information storage.
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