Tomoyuki Ogawa et al 2006 Nanotechnology 17 5539 doi:10.1088/0957-4484/17/22/002
Tomoyuki Ogawa1,4, Yasuhiro Takahashi1, Haitao Yang1, Kaori Kimura2, Masatoshi Sakurai2 and Migaku Takahashi3
Show affiliationsMagnetic nanoparticle arrays have been fabricated by combining chemically synthesized Fe3O4 nanoparticles with a diblock copolymer template substrate consisting of self-assembled polystyrene (PS) dots in a polymethylmethacrylate (PMMA) matrix. The influence of the volume fraction of the Fe3O4 suspending solution and the withdrawal speed of the template on the formation of array structures was investigated. A small volume fraction of the nanoparticles and low withdrawal speed play an important role in the fabrication of the patterned arrays of nanoparticles via template assisted self-assembly. Below a withdrawal speed of 0.5 mm s−1 and a nanoparticle volume fraction below 0.05 vol% (in particular, at extremely high dilutions of less than 0.01 vol%), the selective deposition of one to several nanoparticles on every single PS dot becomes possible.
81.07.-b Nanoscale materials and structures: fabrication and characterization
75.75.+a Magnetic properties of nanostructures
Issue 22 (28 November 2006)
Received 15 August 2006, in final form 30 September 2006
Published 25 October 2006
Tomoyuki Ogawa et al 2006 Nanotechnology 17 5539
C Duval and P A Horváthy 2001 J. Phys. A: Math. Gen. 34 10097
Sun Wen-Feng et al 2009 Chinese Phys. Lett. 26 114210
Chris Benson et al 2004 Phys. Med. Biol. 49 3145
S. A. Stanford et al. 2001 ApJ 552 504
V I Arkhipov et al 2002 J. Phys.: Condens. Matter 14 9899
Steven P. Ruden 2004 ApJ 605 880
Adam Bechler 2001 J. Phys. A: Math. Gen. 34 8081
Wenhua Hai et al 1999 J. Phys. A: Math. Gen. 32 8265
G Qin and S F Ren 2002 J. Phys.: Condens. Matter 14 8771