섬유

surface microfabrication of a gold surface in argon using scanning tunneling microscopy

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 312
using a scanning tunneling microscope which can operate in a high- purity argon atmosphere, the generation of rectangular pits in a polycrystalline gold sample is demonstrated. unlike the common method of applying voltage pulses to the tip, these are fabricated by scanning a small portion of the surface at a higher tip bias. the structures produced degenerate in time as the surface relaxes. an estimate of 50 a for the mean free path of electrons with an energy 3 ev above the fermi level in gold is made from the profile of the pit edges. (author abstract) 22 refs
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