Energy gap distribution on polycrystalline HgBa2CuO4+δ observed by scanning tunneling spectroscopy

1996 ◽  
Vol 46 (S3) ◽  
pp. 1337-1338
Author(s):  
P. Jess ◽  
U. Hubler ◽  
H. P. Lang ◽  
H. -J. Güntherodt ◽  
K. Lüders ◽  
...  
Keyword(s):  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling

SPATIAL EVOLUTION OF THE BACKGROUND CONDUCTANCE IN THE TUNNELING SPECTRA IN Bi2Sr2-xLaxCuO6+δ

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3190-3193
Author(s):  
T. KATO ◽  
T. MACHIDA ◽  
Y. KAMIJO ◽  
K. HARADA ◽  
R. SAITO ◽  
...  
Keyword(s):  
Low Temperature ◽  
Single Crystal ◽  
Spatial Variation ◽  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Spatial Evolution ◽  
Local Energy ◽  
Temperature Scanning

The spatial evolution of the background conductance in the tunneling spectra was investigated with low-temperature scanning tunneling spectroscopy on a slightly overdoped Bi 2 Sr 1.74 La 0.26 CuO 6+δ single crystal at 4.2 K. The asymmetry in the background conductance between positive and negative biases strongly correlates with the local energy gap, which shows the inhomogeneous spatial variation: the tunneling spectra become more asymmetric in the regions where the spectra exhibit larger gap value.

Energy gap of silicon clusters studied by scanning tunneling spectroscopy

2000 ◽  
Vol 62 (11) ◽  
pp. 6892-6895 ◽  
Author(s):  
B. Marsen ◽  
M. Lonfat ◽  
P. Scheier ◽  
K. Sattler
Keyword(s):  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Silicon Clusters

scholarly journals Small energy gap revealed in CrBr3 by scanning tunneling spectroscopy

2021 ◽  
Author(s):  
Dinesh Baral ◽  
Zhuangen Fu ◽  
Andrei S. Zadorozhnyi ◽  
Rabindra Dulal ◽  
Aaron Wang ◽  
...  
Keyword(s):  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Small Energy

Using scanning tunneling spectroscopy (dI/dV) measurements, small energy gap was revealed in CrBr3 flakes.

Energy gap determination on polycrystalline Rb2CsC60 by scanning tunneling spectroscopy

1997 ◽  
Vol 58 (11) ◽  
pp. 1803-1805 ◽  
Author(s):  
P. Jess ◽  
U. Hubler ◽  
H.P. Lang ◽  
H.-J. Güntherodt ◽  
H. Werner ◽  
...  
Keyword(s):  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling

Spatially Varying Energy Gap in the CuO Chains ofYBa2Cu3O7−xDetected by Scanning Tunneling Spectroscopy

1995 ◽  
Vol 75 (7) ◽  
pp. 1387-1390 ◽  
Author(s):  
H. L. Edwards ◽  
D. J. Derro ◽  
A. L. Barr ◽  
J. T. Markert ◽  
A. L. de Lozanne
Keyword(s):  
Energy Gap ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Spatially Varying

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