scholarly journals Probing the Radiative Electromagnetic Local Density of States in Nanostructures with a Scanning Tunneling Microscope

ACS Photonics ◽  
2020 ◽  
Vol 7 (5) ◽  
pp. 1280-1289
Author(s):  
Shuiyan Cao ◽  
Mario Zapata-Herrera ◽  
Alfredo Campos ◽  
Eric Le Moal ◽  
Sylvie Marguet ◽  
...  
Keyword(s):  
Density Of States ◽  
Scanning Tunneling Microscope ◽  
Local Density ◽  
Scanning Tunneling ◽  
Local Density Of States ◽  
Tunneling Microscope

Scanning tunneling microscope investigation of local density of states in Al-doped ZnO thin films

2011 ◽  
Vol 83 (7) ◽  
Author(s):  
Edward M. Likovich ◽  
Rafael Jaramillo ◽  
Kasey J. Russell ◽  
Shriram Ramanathan ◽  
Venkatesh Narayanamurti
Keyword(s):  
Thin Films ◽  
Density Of States ◽  
Scanning Tunneling Microscope ◽  
Local Density ◽  
Zno Thin Films ◽  
Scanning Tunneling ◽  
Local Density Of States ◽  
Tunneling Microscope ◽  
Microscope Investigation ◽  
Doped Zno

PHOTON EMISSION FROM TRANSITION METAL SURFACES IN SCANNING TUNNELING MICROSCOPY

1993 ◽  
Vol 07 (01n03) ◽  
pp. 516-519 ◽  
Author(s):  
RICHARD BERNDT ◽  
JAMES K. GIMZEWSKI
Keyword(s):  
Scanning Tunneling Microscope ◽  
Metal Surfaces ◽  
Light Emission ◽  
Local Density ◽  
Photon Emission ◽  
Scanning Tunneling ◽  
Local Density Of States ◽  
Tunneling Microscopy ◽  
Photon Intensity ◽  
Plasmon Modes

Light emission from noble metal surfaces excited by a scanning tunneling microscope has been interpreted as arising from in elastic tunneling excitation of tip-induced plasmon modes. We have extended this work to study the adsorption of oxygen on Ti and have observed the formation of structures with subnanometer lateral dimensions which give rise to clear contrasts in STM topographs and photon intensity maps. The experimental results strongly indicate that these contrasts are due to oxygen-induced variations of the local density of states.

Measurement of Local Density of States by Scanning Tunneling Spectroscopy at Low Temperature

1987 ◽  
Vol 26 (S3-1) ◽  
pp. 627 ◽  
Author(s):  
Hiroshi Bando ◽  
Hiroshi Tokumoto ◽  
Wataru Mizutani ◽  
Kazuhiro Endo ◽  
Shigeru Wakiyama ◽  
...  
Keyword(s):  
Low Temperature ◽  
Density Of States ◽  
Local Density ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Local Density Of States

FRACTAL FEATURES OF THE QUANTIZED SCANNING TUNNELING CURRENT AND THE LOCAL DENSITY OF STATES FOR A QUANTUM CORRAL

2018 ◽  
Vol 25 (04) ◽  
pp. 1850091 ◽  
Author(s):  
YOHHEI TATSUMI ◽  
SHIGENORI MITSUOKA ◽  
AKIRA TAMURA
Keyword(s):  
Density Of States ◽  
Size Dependence ◽  
Local Density ◽  
Tunneling Current ◽  
Real Space ◽  
Differential Conductance ◽  
Scanning Tunneling ◽  
Local Density Of States ◽  
Fractal Structures ◽  
First Time

We found that quantization of the scanning tunneling microscope (STM) current becomes apparent as the size of a quantum corral (QC) decreases and the corral thickness increases. It is shown that STM current images provide the position dependence of the conduction channels and local density of states (LDOS) images provide the spatial distribution of differential conductance channels. We clarified for the first time that there exist fractal structures in the QC size dependence of the [Formula: see text]–[Formula: see text] characteristic and in that of the LDOS. LDOS images also exhibit a fractal structure as a function of bias voltage. These results demonstrate fractal structures in energy space and real space. For an extremely large QC, we found that the [Formula: see text]–[Formula: see text] curve becomes Ohmic and the LDOS converges to a constant corresponding to the bulk two-dimensional density of states.

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