scholarly journals Controlling Quantum Interference by Regulating Charge on the Bridging N Atom of Pyrrolodipyridine Molecular Junctions

2019 ◽  
Author(s):  
Saman Naghibi ◽  
Ali K. Ismael ◽  
Andrea Vezzoli ◽  
Mohsin K. Al-Khaykanee ◽  
Xijia Zheng ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Molecular Wires ◽  
Molecular Junctions ◽  
Scanning Probe ◽  
Molecular Wire ◽  
Interference Effects ◽  
Electronic Density ◽  
Molecular Conductance

<b>Control of quantum interference features</b>: molecular junctions incorporating pyrrolodipyridine-based molecular wires were fabricated by scanning probe methods. Quantum interference effects were introduced by employing <i>meta</i>-connected molecules, and modulated in magnitude by changing the substituent on the pyrrolic N. Dramatic changes in molecular conductance and DFT transport calculations demonstrate the storng effect that small changes in electronic density can have on the overall conductance of a molecular wire.

scholarly journals Controlling Quantum Interference by Regulating Charge on the Bridging N Atom of Pyrrolodipyridine Molecular Junctions

2019 ◽  
Author(s):  
Saman Naghibi ◽  
Ali K. Ismael ◽  
Andrea Vezzoli ◽  
Mohsin K. Al-Khaykanee ◽  
Xijia Zheng ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Molecular Wires ◽  
Molecular Junctions ◽  
Scanning Probe ◽  
Molecular Wire ◽  
Interference Effects ◽  
Electronic Density ◽  
Molecular Conductance

<b>Control of quantum interference features</b>: molecular junctions incorporating pyrrolodipyridine-based molecular wires were fabricated by scanning probe methods. Quantum interference effects were introduced by employing <i>meta</i>-connected molecules, and modulated in magnitude by changing the substituent on the pyrrolic N. Dramatic changes in molecular conductance and DFT transport calculations demonstrate the storng effect that small changes in electronic density can have on the overall conductance of a molecular wire.

scholarly journals Systematic experimental study of quantum interference effects in anthraquinoid molecular wires

2019 ◽  
Vol 1 (5) ◽  
pp. 2018-2028 ◽  
Author(s):  
Marco Carlotti ◽  
Saurabh Soni ◽  
Xinkai Qiu ◽  
Eric Sauter ◽  
Michael Zharnikov ◽  
...  
Keyword(s):  
Experimental Study ◽  
Structure Function ◽  
Quantum Interference ◽  
Electronic Devices ◽  
Molecular Wires ◽  
Design Principles ◽  
Device Fabrication ◽  
Molecular Properties ◽  
Interference Effects ◽  
Molecular Electronic

In order to translate molecular properties in molecular-electronic devices, it is necessary to create design principles that can be used to achieve better structure–function control oriented toward device fabrication.

scholarly journals Symmetry aspects of spin filtering in molecular junctions: Hybridization and quantum interference effects

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
Dongzhe Li ◽  
Rajdeep Banerjee ◽  
Sourav Mondal ◽  
Ivan Maliyov ◽  
Mariya Romanova ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Molecular Junctions ◽  
Interference Effects ◽  
Spin Filtering

scholarly journals Charge transfer versus molecular conductance: molecular orbital symmetry turns quantum interference rules upside down

2015 ◽  
Vol 6 (7) ◽  
pp. 4196-4206 ◽  
Author(s):  
Natalie Gorczak ◽  
Nicolas Renaud ◽  
Simge Tarkuç ◽  
Arjan J. Houtepen ◽  
Rienk Eelkema ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Molecular Orbital ◽  
Quantum Interference ◽  
Interference Effects ◽  
Orbital Symmetry ◽  
Molecular Conductance

Molecular orbital symmetry considerations can strongly affect the nature of quantum interference effects in charge transfer..

scholarly journals Extended curly arrow rules to rationalise and predict structural effects on quantum interference in molecular junctions

Nanoscale ◽  
2021 ◽  
Author(s):  
Luke J. O'Driscoll ◽  
Martin R. Bryce
Keyword(s):  
Quantum Interference ◽  
Graphical Method ◽  
Molecular Wires ◽  
Molecular Junctions ◽  
Structural Effects

An extension to curly arrow rules for the prediction of quantum interference behaviour in conjugated molecular wires widens the scope of this simple graphical method to wires containing heteroatoms, cross-conjugation and/or non-alternant structures.

Switchable Negative Differential Resistance Induced by Quantum Interference Effects in Porphyrin-based Molecular Junctions

2015 ◽  
Vol 6 (19) ◽  
pp. 3950-3955 ◽  
Author(s):  
Daijiro Nozaki ◽  
Lokamani ◽  
Alejandro Santana-Bonilla ◽  
Arezoo Dianat ◽  
Rafael Gutierrez ◽  
...  
Keyword(s):  
Negative Differential Resistance ◽  
Quantum Interference ◽  
Differential Resistance ◽  
Molecular Junctions ◽  
Interference Effects

scholarly journals Correction: Systematic experimental study of quantum interference effects in anthraquinoid molecular wires

2019 ◽  
Vol 1 (5) ◽  
pp. 2040-2040
Author(s):  
Marco Carlotti ◽  
Saurabh Soni ◽  
Xinkai Qiu ◽  
Yong Ai ◽  
Eric Sauter ◽  
...  
Keyword(s):  
Experimental Study ◽  
Quantum Interference ◽  
Molecular Wires ◽  
Interference Effects

Correction for ‘Systematic experimental study of quantum interference effects in anthraquinoid molecular wires’ by Marco Carlotti et al., Nanoscale Adv., 2019, DOI: 10.1039/c8na00223a.

scholarly journals Molecular Wire Interconnects: Chemical Structural Control, Resonant Tunneling and Length Dependence

VLSI Design ◽  
1998 ◽  
Vol 8 (1-4) ◽  
pp. 65-74 ◽  
Author(s):  
Mathieu Kemp ◽  
Vladimiro Mujica ◽  
Adrian Roitberg ◽  
Mark A. Ratner
Keyword(s):  
Coulomb Blockade ◽  
Structural Control ◽  
Resonant Tunneling ◽  
Molecular Wires ◽  
Molecular Wire ◽  
Gate Electrodes ◽  
Length Dependence ◽  
Nonlinear Conductance ◽  
Molecular Conductance ◽  
Tunneling Behavior

Molecular wires have several promising features, that would appear to make them ideal for advanced interconnects in nanoscale electronic devices. We discuss several aspects of the linear and nonlinear conductance of molecular wire interconnects. Topics include energy dependence of molecular conductance, resonant tunneling behavior, control of conductance by molecular structure and geometry, length dependence including the tunneling regime energetics. Design rules using molecular interconnects will differ substantially from those with more standard, lithographically structured silicon interconnects. In particular, the dissipation mechanisms will differ, both tunneling and ballistic regimes should be available, coulomb blockade and staircase behavior will be observed (but under differing conditions) and fabrication of gate electrodes is a challenge.

High tunneling magnetoresistance induced by symmetry and quantum interference in magnetic molecular junctions

2021 ◽  
Author(s):  
Lin Huang ◽  
Yu-Jia Zeng ◽  
Dan Wu ◽  
Nan-Nan Luo ◽  
Ye-Xin Feng ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Green’S Function ◽  
Green's Function ◽  
Quantum Interference ◽  
Density Functional ◽  
Molecular Junctions ◽  
Tunneling Magnetoresistance ◽  
Functional Theory ◽  
Nonequilibrium Green's Function ◽  
Molecular Scale

Achieving high tunneling magnetoresistance (TMR) in molecular-scale junctions is attractive for their applications in spintronics. By using density-functional theory (DFT) in combination with the nonequilibrium Green's function (NEGF) method, we...

scholarly journals Heteroatom Effects on Quantum Interference in Molecular Junctions: Modulating Antiresonances by Molecular Design

2021 ◽  
Author(s):  
Luke J. O’Driscoll ◽  
Sara Sangtarash ◽  
Wei Xu ◽  
Abdalghani Daaoub ◽  
Wenjing Hong ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Molecular Design ◽  
Molecular Junctions
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