Fluctuation in Interface and Electronic Structure of Single-Molecule Junctions Investigated by Current versus Bias Voltage Characteristics

2018 ◽  
Vol 140 (10) ◽  
pp. 3760-3767 ◽  
Author(s):  
Yuji Isshiki ◽  
Shintaro Fujii ◽  
Tomoaki Nishino ◽  
Manabu Kiguchi
Keyword(s):  
Electronic Structure ◽  
Bias Voltage ◽  
Single Molecule ◽  
Versus Bias ◽  
Versus Bias Voltage ◽  
Single Molecule Junctions

Electronic Structure and Transport Properties of Single-Molecule Junctions with Different Sizes of π-Conjugated System

2021 ◽  
Vol 125 (6) ◽  
pp. 3472-3479
Author(s):  
Yuji Isshiki ◽  
Tomoaki Nishino ◽  
Shintaro Fujii
Keyword(s):  
Electronic Structure ◽  
Transport Properties ◽  
Single Molecule ◽  
Single Molecule Junctions

Low tunnel magnetoresistance dependence versus bias voltage in double barrier magnetic tunnel junction

2003 ◽  
Vol 83 (5) ◽  
pp. 948-950 ◽  
Author(s):  
S. Colis ◽  
G. Gieres ◽  
L. Bär ◽  
J. Wecker
Keyword(s):  
Bias Voltage ◽  
Tunnel Junction ◽  
Magnetic Tunnel Junction ◽  
Double Barrier ◽  
Tunnel Magnetoresistance ◽  
Versus Bias ◽  
Dependence Versus ◽  
Versus Bias Voltage

scholarly journals Exploring the thermoelectric properties of oligo(phenylene-ethynylene) derivatives

Nanoscale ◽  
2020 ◽  
Vol 12 (28) ◽  
pp. 15150-15156
Author(s):  
Hang Chen ◽  
Sara Sangtarash ◽  
Guopeng Li ◽  
Markus Gantenbein ◽  
Wenqiang Cao ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Single Molecule ◽  
Phenylene Ethynylene ◽  
Single Molecule Junctions

Seebeck coefficient measurements provide unique insights into the electronic structure of single-molecule junctions.

Conductance versus bias voltage characteristics of multi-walled carbon nanotubes

2005 ◽  
Vol 16 (9) ◽  
pp. 1863-1867 ◽  
Author(s):  
Makusu Tsutsui ◽  
Shota Mitsuya ◽  
Shu Kurokawa ◽  
Akira Sakai
Keyword(s):  
Carbon Nanotubes ◽  
Bias Voltage ◽  
Versus Bias ◽  
Versus Bias Voltage ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Evaluation of the Electronic Structure of Single-Molecule Junctions Based on Current-Voltage and Thermopower Measurements: Application to C60Single-Molecule Junction

2017 ◽  
Vol 12 (4) ◽  
pp. 440-445 ◽  
Author(s):  
Yuki Komoto ◽  
Yuji Isshiki ◽  
Shintaro Fujii ◽  
Tomoaki Nishino ◽  
Manabu Kiguchi
Keyword(s):  
Electronic Structure ◽  
Single Molecule ◽  
Current Voltage ◽  
Single Molecule Junctions ◽  
Molecule Junction

Mechanically-Tunable Quantum Interference in Ferrocene-Based Single-Molecule Junctions

2020 ◽  
Author(s):  
María Camarasa-Gómez ◽  
Daniel Hernangómez-Pérez ◽  
Michael S. Inkpen ◽  
Giacomo Lovat ◽  
E-Dean Fung ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Interference ◽  
Degrees Of Freedom ◽  
Building Blocks ◽  
Ferrocene Derivative ◽  
Single Molecule Junctions ◽  
Molecule Junction ◽  
Single Molecule Junction ◽  
The Impact ◽  
D Orbitals

Ferrocenes are ubiquitous organometallic building blocks that comprise a Fe atom sandwiched between two cyclopentadienyl (Cp) rings that rotate freely at room temperature. Of widespread interest in fundamental studies and real-world applications, they have also attracted<br>some interest as functional elements of molecular-scale devices. Here we investigate the impact of<br>the configurational degrees of freedom of a ferrocene derivative on its single-molecule junction<br>conductance. Measurements indicate that the conductance of the ferrocene derivative, which is<br>suppressed by two orders of magnitude as compared to a fully conjugated analog, can be modulated<br>by altering the junction configuration. Ab initio transport calculations show that the low conductance is a consequence of destructive quantum interference effects that arise from the hybridization of metal-based d-orbitals and the ligand-based π-system. By rotating the Cp rings, the hybridization, and thus the quantum interference, can be mechanically controlled, resulting in a conductance modulation that is seen experimentally.<br>

Charge Transfer Complexation Boosts Molecular Conductance Through Fermi Level Pinning

2018 ◽  
Author(s):  
Kun Wang ◽  
Andrea Vezzoli ◽  
Iain Grace ◽  
Maeve McLaughlin ◽  
Richard Nichols ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Single Molecule ◽  
Quantum Interference ◽  
Transmission Function ◽  
Scanning Tunneling ◽  
Charge Transfer Complexes ◽  
Tunneling Microscopy ◽  
Quantum Interference Effect ◽  
Single Molecule Junctions ◽  
Charge Transfer Complexation

We have used scanning tunneling microscopy to create and study single molecule junctions with thioether-terminated oligothiophene molecules. We find that the conductance of these junctions increases upon formation of charge transfer complexes of the molecules with tetracyanoethene, and that the extent of the conductance increase is greater the longer is the oligothiophene, i.e. the lower is the conductance of the uncomplexed molecule in the junction. We use non-equilibrium Green's function transport calculations to explore the reasons for this theoretically, and find that new resonances appear in the transmission function, pinned close to the Fermi energy of the contacts, as a consequence of the charge transfer interaction. This is an example of a room temperature quantum interference effect, which in this case boosts junction conductance in contrast to earlier observations of QI that result in diminished conductance.<br>

Dissecting Contact Mechanics from Quantum Interference in Single-Molecule Junctions of Stilbene Derivatives

Nano Letters ◽  
2012 ◽  
Vol 12 (3) ◽  
pp. 1643-1647 ◽  
Author(s):  
Sriharsha V. Aradhya ◽  
Jeffrey S. Meisner ◽  
Markrete Krikorian ◽  
Seokhoon Ahn ◽  
Radha Parameswaran ◽  
...  
Keyword(s):  
Contact Mechanics ◽  
Single Molecule ◽  
Quantum Interference ◽  
Single Molecule Junctions ◽  
Stilbene Derivatives
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