Three dimensional nano-seeding assembly of ferromagnetic Fe/LaSrFeO4 nano-hetero dot array
作者： K. Okada , T. Sakamoto , K. Fujiwara , A. N. Hattori , T. Kanki
DOI: 10.1063/1.4739719
关键词: Nano- 、 Crystal growth 、 Surface diffusion 、 Magnetic force microscope 、 Nanocomposite 、 Materials science 、 Nanotechnology 、 Chemical engineering 、 Nanodot 、 Magnetic domain 、 Nanolithography
摘要: Well-ordered ferromagnetic Fe nanodots/LaSrFeO4 nanocomposites have been fabricated by self-assembled crystal growth on La-SrTiO3 substrates having nanoseed array nanoimprint lithography (NIL). The nanoseeds with spacing of 200 nm make possible the formation perfectly arranged Fe/LaSrFeO4 nanocomposites; phase-separated nanodots and LaSrFeO4 matrix grew only area except nanoseeds, respectively. A calculation based a surface diffusion model has indicated that required for nanocomposite is less than 400 nm. Magnetic force microscopy revealed an arrangement isolated domain corresponding to grown nanoseeds. combination NIL gives route rational high-density memory devices.
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