Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2000.02a
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- Pages.159-159
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- 2000
Initial Growth of Nb on Cu(100) studied by STM and Density Functional Theory
- Lee, Joon-Hee (Department of Physics and Atomic-scale Surface Science Research Center, Yonsei university) ;
- Ryang, Kyung-Deuk (Department of Physics and Atomic-scale Surface Science Research Center, Yonsei university) ;
- Son, Chul-Woo (Department of Physics and Atomic-scale Surface Science Research Center, Yonsei university) ;
- Lyo, In-Whon (Department of Physics and Atomic-scale Surface Science Research Center, Yonsei university) ;
- Kang, Jin-Ho (Department of physics, Pohang University of science and Technology) ;
- Kang, Myung-Ho (Department of physics, Pohang University of science and Technology)
- Published : 2000.02.01
Abstract
Initial growth mode of Nb on Cu(100) is studied by scanning tunneling microscopy (STM) and density functional theory. Nb/Cu is immiscible at room temperature, but isolated Nb atoms are expected to be incorporated up to the second layer by DFT. STM shows that Nb atoms mix with Cu atoms in the first layer at room temperature and diffuse into the second layer upon annealing. In the second layer, Nb/induced features are preferentially found at step edges and appear as bright dots surrounded by dark rings. Details of comparison between experiment and theory will be discussed.
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