Toward Electronic Conductance Characterization of DNA Nucleotide Bases

We calculate electron-transport properties within equilibrium, linear transport theory through the DNA nucleotide bases spanning two gold nanowires. Our quantum mechanical calculations show that single configurations of DNA bases A, C, T, and G have significantly different charge conductance characteristics. This result is consistent with the notion that it is possible to read the nucleotide base sequence on an individual DNA heteropolymer which is moving through a gap between electrically biased nanoelectrodes by measuring the changes in the electron-transport conductance.

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Structural characterization of strained AlGaN layers in different Al content AlGaN∕GaN heterostructures and its effect on two-dimensional electron transport properties

Journal of Vacuum Science & Technology B Microelectronics Processing and Phenomena ◽

10.1116/1.1993619 ◽

2005 ◽

Vol 23 (4) ◽

pp. 1527 ◽

Cited By ~ 28

Author(s):

Makoto Miyoshi ◽

Takashi Egawa ◽

Hiroyasu Ishikawa

Keyword(s):

Electron Transport ◽

Transport Properties ◽

Structural Characterization ◽

Two Dimensional ◽

Dimensional Electron ◽

Al Content ◽

Electron Transport Properties

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Optical fingerprints and electron transport properties of DNA bases adsorbed on monolayer MoS2

RSC Advances ◽

10.1039/c6ra10008b ◽

2016 ◽

Vol 6 (65) ◽

pp. 60223-60230 ◽

Cited By ~ 15

Author(s):

Munish Sharma ◽

Ashok Kumar ◽

P. K. Ahluwalia

Keyword(s):

Density Functional Theory ◽

Electron Transport ◽

Transport Properties ◽

Density Functional ◽

Dna Bases ◽

Monolayer Mos2 ◽

Functional Theory ◽

Electron Transport Properties

Electronic, optical and transport properties of DNA nucleobase adsorbed on monolayer MoS2 has been investigated using density functional theory.

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First-Principles Study of Electron Transport Behavior through Porphyrin Molecular Wires

Materials Science Forum ◽

10.4028/www.scientific.net/msf.663-665.616 ◽

2010 ◽

Vol 663-665 ◽

pp. 616-619 ◽

Cited By ~ 1

Author(s):

Yan Wei Li ◽

Jin Huan Yao ◽

Xing Sheng Deng ◽

Xiao Xi Huang

Keyword(s):

Electron Transport ◽

First Principles ◽

Density Functional ◽

Molecular Wires ◽

Quantum Mechanical ◽

Functional Theory ◽

Transport Behavior ◽

Electron Transport Properties ◽

Ab Inito ◽

Exponential Relation

The nonequilibrium Green’s function approach in combination with density-functional theory is used to perform ab inito quantum-mechanical calculations of the electron transport properties of porphyrin oligomers sandwiched between two gold electrodes. The results show that porphyrin oligomers are good candidates for long-range conduction wires. In particular, the decay of conductance of porphyrin oligomers does not follow the exponential relation. The electron transport behavior was analyzed from the molecular projected self-consistent Hamiltonian states and the electron transmission spectra of the molecular junctions.

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Thermoelectric Characterization of Electronic Properties of GaMnAs Nanowires

Journal of Nanotechnology ◽

10.1155/2012/480813 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5 ◽

Cited By ~ 9

Author(s):

Phillip M. Wu ◽

Waldomiro Paschoal ◽

Sandeep Kumar ◽

Christian Borschel ◽

Carsten Ronning ◽

...

Keyword(s):

Electron Transport ◽

Transport Properties ◽

Sharp Increase ◽

Hopping Conduction ◽

Conduction Model ◽

Electron Transport Properties ◽

Heavy Doping ◽

Magnetic Doping ◽

Proof Of Principle

Nanowires with magnetic doping centers are an exciting candidate for the study of spin physics and proof-of-principle spintronics devices. The required heavy doping can be expected to have a significant impact on the nanowires' electron transport properties. Here, we use thermopower and conductance measurements for transport characterization of Ga0.95Mn0.05As nanowires over a broad temperature range. We determine the carrier type (holes) and concentration and find a sharp increase of the thermopower below temperatures of 120 K that can be qualitatively described by a hopping conduction model. However, the unusually large thermopower suggests that additional mechanisms must be considered as well.

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