• 제목/요약/키워드: Magnetic Metal Films

검색결과 106건 처리시간 0.024초

EFFECTS OF Co-DOPING LEVEL ON THE MICROSTRUCTURAL AND FERROMAGNETIC PROPERTIES OF LIQUID-DELIVERY METALORGANIC-CHEMICAL-VAPOR-DEPOSITED $Ti_{1-x}Co_xO_2$ THIN FILMS

  • Seong, N.J.;Seong, S.G.
    • 한국자기학회:학술대회 개요집
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    • 한국자기학회 2002년도 동계연구발표회 논문개요집
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    • pp.42-43
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    • 2002
  • Spintronics is a rapidly expanding research area because of recent developments in the physics of spin-dependent phenomena. For use as spintronic materials, dilute magnetic semiconductors (DMS) are of considerable interest as spin injectors for spintronic devices.$^{[1]}$ Many researchers have studied DMS, in which transition metal atoms are introduced into the lattice, thus inserting local magnetic moments into the lattice. (omitted)

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Deposition of BZO nano-sized dots on the substrate surface for the enhanced magnetic properties of superconducting films

  • Chung, Kook-Chae;Yoo, Jai-Moo;Kim, Young-Kuk;Wang, X.L.;Dou, S.X.
    • 한국초전도ㆍ저온공학회논문지
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    • 제10권2호
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    • pp.12-15
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    • 2008
  • Nano-sized dots have been formed on the buffered metal substrates using the novel approach of the electro-spray deposition, to modulate the substrate surface and induce the columnar defects in REBCO films grown on it. The $BaZrO_3$ precursor solution was synthesized and electro-sprayed out onto the negatively charged substrate surface. Using the electrostatic force, nano-sized dots can be grown and uniformly distributed on the buffered metal substrate. The height of BZO nanodots was observed above the 200nm, which are beneficial to induce the columnar defects onto the BZO as a seed. The density of BZO nanodots was also investigated and ${\sim}7.8/{\mu}m^2$ was obtained. As the deposition distance of electro-spray was shortened there was ${\sim}8times$ increase of density of nanodots. The optimization of process variables in electro-spray deposition are discussed in respect to the superconducting REBCO films processed by the Metal-Organic Deposition with the effective flux pinning properties.