We present results of experimental investigations of Ni clusters deposited on ab surface of Bi₂Sr₂CaCu₂O_8+y (BSCCO) single crystals or highly oriented pyrolytic graphite (HOPG) substrates. The micro clusters were produced by the plasma gas condensation or evaporator with integral flux monitor. The scanning tunneling spectroscopy was performed at 24K and at room temperature. The spectra reveal differences between the curves measured above the Ni clusters and substrate, respectively. The relationship between surface atomic scale and local density of states in the materials is also discussed.

Date Published: 17 April 2001
PDF: 6 pages
Proc. SPIE 4413, International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology, (17 April 2001); doi: 10.1117/12.425426

Published in SPIE Proceedings Vol. 4413:
International Conference on Solid State Crystals 2000: Epilayers and Heterostructures in Optoelectronics and Semiconductor Technology
Jaroslaw Rutkowski; Jakub Wenus; Leszek Kubiak, Editor(s)