Room temperature electron transport properties of single C60 studied using scanning tunneling microscope and break junctions

2010 ◽  
Vol 108 (5) ◽  
pp. 053720 ◽  
Author(s):  
Ruihua Cheng ◽  
Jeffery Carvell ◽  
F. Y. Fradin
Keyword(s):  
Electron Transport ◽  
Transport Properties ◽  
Scanning Tunneling Microscope ◽  
Room Temperature ◽  
Scanning Tunneling ◽  
Break Junctions ◽  
Tunneling Microscope ◽  
Electron Transport Properties ◽  
Temperature Electron

In-situ photoconductivity measurement of imidazole in optical fiber break-junctions

2021 ◽  
Author(s):  
Zhikai Zhao ◽  
Chenyang Guo ◽  
Lifa Ni ◽  
Xueyan Zhao ◽  
Surong Zhang ◽  
...  
Keyword(s):  
Electron Transport ◽  
Optical Fiber ◽  
Transport Properties ◽  
Molecular Junctions ◽  
Break Junction ◽  
Break Junctions ◽  
Fiber Break ◽  
Electron Transport Properties ◽  
Photoconductivity Measurement

We develop a method based on the mechanically controllable break junction technique to investigate the electron transport properties of single molecular junctions upon fiber waveguided light. In our strategy, a...

High temperature electron transport properties of AlGaN/GaN heterostructures with different Al-contents

2009 ◽  
Vol 52 (12) ◽  
pp. 1879-1884 ◽  
Author(s):  
ZhongFen Zhang ◽  
JinCheng Zhang ◽  
ZhiHao Xu ◽  
HuanTao Duan ◽  
Yue Hao
Keyword(s):  
High Temperature ◽  
Electron Transport ◽  
Transport Properties ◽  
Electron Transport Properties ◽  
Temperature Electron

scholarly journals A “Pushy” Microscope

1996 ◽  
Vol 4 (2) ◽  
pp. 3-4
Author(s):  
Stephen W. Carmichael
Keyword(s):  
Scanning Tunneling Microscope ◽  
Low Temperatures ◽  
Research Laboratory ◽  
Room Temperature ◽  
Scientific Research ◽  
Thermal Motion ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Tunneling Microscope ◽  
Dimensional Surface

The process of ultra-miniaturization has been termed nanofabrication. It looks like the scanning tunneling microscope (STU) and related microscopes will be players in this technology of the future. One of the most recent contributions has been the demonstration that single molecules can be “pushed” across a surface with the STM. This remarkable achievement was demonstrated by Thomas Jung, Reto Schlittler, and James Gimzewski of the IBM Zurich Research Laboratory and Hao Tang and Christian Joachim of the National Center for Scientific Research in Toulouse, They were able to position intact individual molecules on a two-dimensional surface at room temperature by a controlled “pushing” action of the tip of a STM. Similar positioning feats have been done at low temperatures while thermal motion is limited.

scholarly journals Can One Define the Conductance of Amino Acids?

Biomolecules ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 580 ◽  
Author(s):  
Zotti ◽  
Bednarz ◽  
Hurtado-Gallego ◽  
Cabosart ◽  
Rubio-Bollinger ◽  
...  
Keyword(s):  
Amino Acids ◽  
Conformational Changes ◽  
Scanning Tunneling Microscope ◽  
Scanning Tunneling ◽  
Break Junction ◽  
Tunneling Microscope ◽  
Electron Transport Properties ◽  
Recognition Tunneling ◽  
Conductance Distribution ◽  
Statistical Clustering

We studied the electron-transport properties of ten different amino acids and one dimer (di-methionine) using the mechanically controlled break-junction (MCBJ) technique. For methionine and cysteine, additional measurements were performed with the scanning tunneling microscope break-junction (STM-BJ) technique. By means of a statistical clustering technique, we identified several conductance groups for each of the molecules considered. Ab initio calculations revealed that the observed broad conductance distribution stems from the possibility of various binding geometries which can be formed during stretching combined with a multitude of possible conformational changes. The results suggest that it would be helpful to explore different experimental techniques such as recognition tunneling and conditions to help identify the nature of amino-acid-based junctions even further, for example, with the goal to establish a firm platform for their unambiguous recognition by tunneling break-junction experiments.

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