NDLI: Scanning Tunneling Spectroscopy of Metal Phthalocyanines on a Au(111) Surface with a Ni Tip

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Scanning Tunneling Spectroscopy of Metal Phthalocyanines on a Au(111) Surface with a Ni Tip

Content Provider	Scilit
Author	Jia, Zhi-Chun Hu, Zhen-Peng Zhao, Ai-Di Li, Zhen-Yu Li, Bin
Copyright Year	2011
Description	Journal: Chinese Physics Letters Scanning tunneling spectroscopy of metal phthalocyanines (MPc) adsorbed on a Au(111) surface with a Ni(111) scanning tunneling microscopy tip is simulated on the basis of first-principles calculations and a modified Bardeen approximation. Local d orbital symmetry matching between the molecule and the Ni tip brings obvious negative differential resistance (NDR) phenomena, of which, bias voltage and resonant orbitals can be tuned sensitively by the central ion of the molecule. Different dependences of the NDR peak on the tip-molecule distance at two bias polarities and rectifying phenomena are also interpreted in terms of specific structures of 3d orbitals of the adsorbed MPc and Ni tip.
Related Links	http://iopscience.iop.org/article/10.1088/0256-307X/28/7/076802/pdf
ISSN	0256307X
e-ISSN	17413540
DOI	10.1088/0256-307x/28/7/076802
Journal	Chinese Physics Letters
Issue Number	7
Volume Number	28
Language	English
Publisher	IOP Publishing
Publisher Date	2011-07-01
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics Letters Atomic, Molecular and Chemical Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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