Scanning tunneling spectroscopy of transition-metal impurities at the surface of gold

2000 ◽  
Vol 61 (15) ◽  
pp. 9990-9993 ◽  
Author(s):  
T. Jamneala ◽  
V. Madhavan ◽  
W. Chen ◽  
M. F. Crommie
Keyword(s):  
Transition Metal ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Metal Impurities ◽  
Transition Metal Impurities

Electronic Structure of Layered and Linear Chain Materials by Scanning Probe Microscopy

1994 ◽  
Vol 332 ◽  
Author(s):  
R.V. Coleman ◽  
Z. Dai ◽  
Y. Gong ◽  
C.G. Slough ◽  
Q. Xue
Keyword(s):  
Transition Metal ◽  
Layer Structure ◽  
Linear Chain ◽  
Density Wave ◽  
Spin Density Wave ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Force Microscopy ◽  
Metal Impurities ◽  
Transition Metal Impurities

ABSTRACTTransition metal impurities such as Fe, Ni, and Co can be intercalated into the van der Waals gap of layer structure dichalcogenides and these modify the charge-density wave (CDW) structure and CDW energy gaps. Ordered superlattices associated with antiferromagnetic phases can be detected by both scanning tunneling microscopy (STM) and atomic force microscopy (AFM). STM spectroscopy indicates the formation of a mixed spin-density-wave (SDW) and CDW (SDWCDW) in the doped materials. The quasi-one dimensional trichalcogenide NbSe3 exhibits two CDW transitions and the presence of dilute transition metal impurities produces ordered superlattices due to long range screening of the impurities.

scholarly journals Scanning tunneling spectroscopy of transition-metal-doped GaSb

1999 ◽  
Vol 60 (15) ◽  
pp. 10613-10615 ◽  
Author(s):  
P. Hidalgo ◽  
B. Méndez ◽  
J. Piqueras ◽  
P. S. Dutta ◽  
E. Dieguez
Keyword(s):  
Transition Metal ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Metal Doped

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

Sign in / Sign up

Export Citation Format

Share Document