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  • PACS: 81.40.Gh; 75.70.Ak; 81.15.Fg  (1)
  • Polymer and Materials Science  (1)
  • 1995-1999  (2)
  • 1985-1989
  • 1
    Electronic Resource
    Electronic Resource
    Fabrication of magnetic nanostructures by direct laser interference lithography on supersaturated metal mixtures (1999)
    Springer
    Applied physics 69 (1999), S. S819 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 81.40.Gh; 75.70.Ak; 81.15.Fg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. We present the formation of magnetic nanostructures through the annealing of PLD-deposited Fe-Cr and Co-Ag thin film mixtures by the interference of pulsed laser beams. Both these materials systems have a large miscibility gap under equilibrium conditions. The structures obtained were studied with atomic force and magnetic force microscopy. A pattern of magnetic dots was successfully fabricated on the Fe-Cr sample, but attempts to produce a similar pattern on the Co-Ag film were unsuccessful. The conclusion is drawn that the observed transformations of the film materials under laser heat treatment took place through a local melting of the film in the maxima of the interference pattern. The magnetic properties of the resulting structure are considered to be defined by the liquid state miscibility of the film components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390051538
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  • 2
    Electronic Resource
    Electronic Resource
    STM-induced Annealing and Nanoextrusion in nm-Period Multilayers (1997)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 25 (1997), S. 596-605 
    Details
    ISSN: 0142-2421
    Keywords: nanotechnology ; scanning tunnelling microscopy ; thin films ; metal multilayers ; annealing ; extrusion ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Nanometre-period nickel-carbon multilayers were used as a writing medium for nanostructure fabrication induced by gap voltage manipulations in a scanning tunnelling microscope. The choice of immiscible sample materials provided high-stability written metallic structures. Two well-distinguished hillock-like nanostructure types were observed, depending on the tip-sample separation, polarity and interaction time. Relatively slow local annealing under positive sample potential without a direct tip-sample contact resulted in the formation of nanostructures of 〈20 nm wide and a few nanometres high. Rapid melting followed by metal melt extrusion was observed if the tip contacted the sample during the nanostructure formation, independent of the polarity of the applied voltage. These metallic-like structures were tens of nanometres high and had a good electronic contrast to the initial carbon-coated surface. No traces of tip material were found in the processed areas. The shape of the nanostructures and the threshold voltage of their formation were strongly dependent on the tip condition. Possible courses of nanostructure formation are discussed.© 1997 John Wiley & Sons, Ltd.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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