scholarly journals Can the Seebeck Coefficient Identify Quantum Interference in Molecular Conduction?

2015 ◽  
Vol 119 (22) ◽  
pp. 12097-12108 ◽  
Author(s):  
Lena Simine ◽  
Wei Jia Chen ◽  
Dvira Segal
Keyword(s):  
Seebeck Coefficient ◽  
Quantum Interference ◽  
Molecular Conduction

Quantum Interference Enhanced Thermoelectricity in Ferrocene Based Molecular Junctions

2019 ◽  
Vol 19 (11) ◽  
pp. 7452-7455
Author(s):  
Ashkan Vakilipour Takaloo ◽  
Hatef Sadeghi
Keyword(s):  
Seebeck Coefficient ◽  
Single Molecule ◽  
Power Factor ◽  
Quantum Interference ◽  
Room Temperature ◽  
Thermoelectric Power Factor ◽  
Molecular Scale ◽  
Single Molecule Junctions ◽  
Path Structure ◽  
Single Path

Recent experimental indications of room-temperature quantum interference in the sub-nanometer single molecules suggest that such effects could be utilized to engineer thermoelectric properties of organic single molecule junctions. In this paper, we show that the thermoelectric power factor is significantly enhanced in double path ferrocene cycles compared to the single path counterpart. Due to quantum interference in the double path structure, the Seebeck coefficient is significantly enhanced while the conductance is less affected compared to single path structure. The power factor of the ferrocene cycles are 1–2 orders of magnitude higher than the best organic material reported today. This opens new avenues for future molecular scale organometallic thermoelectricity.

Understanding quantum interference in coherent molecular conduction

2008 ◽  
Vol 129 (5) ◽  
pp. 054701 ◽  
Author(s):  
Gemma C. Solomon ◽  
David Q. Andrews ◽  
Thorsten Hansen ◽  
Randall H. Goldsmith ◽  
Michael R. Wasielewski ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Molecular Conduction

scholarly journals Oscillating Seebeck coefficients in π-stacked molecular junctions

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 24711-24715 ◽  
Author(s):  
Mohsin K. Al-Khaykanee ◽  
Ali K. Ismael ◽  
Iain Grace ◽  
Colin J. Lambert
Keyword(s):  
Seebeck Coefficient ◽  
Quantum Interference ◽  
Molecular Junctions ◽  
Seebeck Coefficients

When two adjacent molecules are slid across each other, quantum interference causes oscillations in their conductance and Seebeck coefficient.

scholarly journals Connectivity-driven bi-thermoelectricity in heteroatom-substituted molecular junctions

2018 ◽  
Vol 20 (14) ◽  
pp. 9630-9637 ◽  
Author(s):  
Sara Sangtarash ◽  
Hatef Sadeghi ◽  
Colin J. Lambert
Keyword(s):  
Seebeck Coefficient ◽  
Quantum Interference ◽  
Molecular Junctions ◽  
Thermoelectric Performance ◽  
Polyaromatic Hydrocarbon ◽  
Heteroatom Substitution ◽  
New Strategy

To improve the thermoelectric performance of molecular junctions formed by polyaromatic hydrocarbon (PAH) cores, we present a new strategy for enhancing their Seebeck coefficient by utilizing connectivities with destructive quantum interference combined with heteroatom substitution.

One-electron transistors based on Coulomb blockade and quantum interference

1999 ◽  
Vol 169 (4) ◽  
pp. 471 ◽  
Author(s):  
Z.D. Kvon ◽  
L.V. Litvin ◽  
V.A. Tkachenko ◽  
A.L. Aseev
Keyword(s):  
Coulomb Blockade ◽  
Quantum Interference ◽  
Electron Transistors

Compact AC/DC Susceptometer using a High-temperature Superconductor Superconducting Quantum Interference Device

2014 ◽  
Vol 134 (6) ◽  
pp. 369-374
Author(s):  
Ryuki Takagi ◽  
Mohd Mawardi Saari ◽  
Kenji Sakai ◽  
Toshihiko Kiwa ◽  
Keiji Tsukada
Keyword(s):  
High Temperature ◽  
Quantum Interference ◽  
High Temperature Superconductor ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference

Instrumentation using quantum interference in superconductors

1965 ◽  
Author(s):  
J. ZIMMERMAN
Keyword(s):  
Quantum Interference

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>

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