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VOLUME 85 (2007) | ISSUE 1 | PAGE 46
The influence of different impurity atoms on 1/fα tunneling current noise characteristics on InAs(110) surface
Abstract
We report the results of UHV STM investigations of tunneling current noise spectra in vicinity of individual impurity atoms on the InAs(110) surface. It was found out that the power law exponent of 1/fα noise depends on the presence of impurity atom in the tunneling junction area. This is consistent with proposed theoretical model considering tunneling current through two state impurity complex model system taking into account many-particle interaction.