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Related papers: Multiple Functionality in Nanotube Transistors

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In this letter we report single-hole tunneling through a quantum dot in a two-dimensional hole gas, situated in a narrow-channel field-effect transistor in intrinsic silicon. Two layers of aluminum gate electrodes are defined on Si/SiO$_2$…

Mesoscale and Nanoscale Physics · Physics 2013-05-16 P. C. Spruijtenburg , J. Ridderbos , F. Mueller , A. W. Leenstra , M. Brauns , A. A. I. Aarnink , W. G. van der Wiel , F. A. Zwanenburg

We study low-temperature transport through carbon nanotube quantum dots in the Coulomb blockade regime coupled to niobium-based superconducting leads. We observe pronounced conductance peaks at finite source-drain bias, which we ascribe to…

Mesoscale and Nanoscale Physics · Physics 2009-05-25 K. Grove-Rasmussen , H. I. Jørgensen , B. M. Andersen , J. Paaske , T. S. Jespersen , J. Nygård , K. Flensberg , P. E. Lindelof

The charge transport properties of single superconducting tin nanowires, encapsulated by multiwalled carbon nanotubes have been investigated by multi-probe measurements. The multiwalled carbon nanotube protects the tin nanowire from…

We measure tunneling through a single quantum level in a carbon nanotube quantum dot connected to resistive metal leads. For the electrons tunneling to/from the nanotube, the leads serve as a dissipative environment, which suppresses the…

Mesoscale and Nanoscale Physics · Physics 2010-10-08 Yu. Bomze , H. Mebrahtu , I. Borzenets , A. Makarovski , G. Finkelstein

Anomalous heat transport in one-dimensional nanostructures, such as nanotubes and nanowires, is a widely debated problem in condensed matter and statistical physics, with contradicting pieces of evidence from experiments and simulations.…

Mesoscale and Nanoscale Physics · Physics 2021-07-14 Giuseppe Barbalinardo , Zekun Chen , Haikuan Dong , Zheyong Fan , Davide Donadio

We performed studies of coherent electronic transport through a single walled carbon nanotube. In the calculations multiple scattering on the contacts and interference processes were taken into account. Conductance is a composition of…

Materials Science · Physics 2016-08-31 W. Iwo Babiaczyk , Bogdan. R. Bulka

Quantum sensing techniques have been successful in pushing the sensitivity limits in numerous fields, and hold great promise for scanning probes that study nano-scale devices and novel materials. However, forming a nano-scale qubit that is…

Mesoscale and Nanoscale Physics · Physics 2019-08-23 Ilya Khivrich , Shahal Ilani

Kondo correlations are responsible for the emergence of a zero-bias peak in the low temperature differential conductance of Coulomb blockaded quantum dots. In the presence of a global SU(2)$\otimes$SU(2) symmetry, which can be realized in…

Motivated by recent experiments on electronic transport through a carbon nanotube, we investigate the role of the intra- and inter-orbital Coulomb interactions on the temperature evolution of the conductance. It is shown that small amount…

Mesoscale and Nanoscale Physics · Physics 2012-10-24 Haruka Oguchi , Nobuhiko Taniguchi

The influence of quantum fluctuations on electron transport through small metallic islands with Coulomb blockade effects is studied beyond the perturbative regime. In tunnel junctions with low resistance higher order coherent processes and…

Condensed Matter · Physics 2016-08-31 Jürgen König , Herbert Schoeller , Gerd Schön

A 1D model study of charge transport in nano-devices is made by comparing multi-configuration time dependent Hartree-Fock and frozen core calculations. The influence of exchange and Coulomb correlation on the tunneling current is…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Zhongxi Zhang , C. F. Destefani , Chris McDonald , Thomas Brabec

We report electrical transport experiments using the phenomenon of electrical breakdown to perform thermometry that probe the thermal properties of individual multi-walled nanotubes. Our results show that nanotubes can readily conduct heat…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 H. -Y. Chiu , V. V. Deshpande , H. W. Ch. Postma , C. N. Lau , C. Mikó , L. Forró , M. Bockrath

In this letter, we characterize the electrical properties of commercial bulk 40-nm MOSFETs at room and deep cryogenic temperatures, with a focus on quantum information processing (QIP) applications. At 50 mK, the devices operate as…

We observe and comprehend the dynamical Coulomb blockade suppression of the electrical conductance across an electronic quantum channel submitted to a temperature difference. A broadly tunable, spin-polarized Ga(Al)As quantum channel is…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 H. Duprez , F. Pierre , E. Sivre , A. Aassime , F. D. Parmentier , A. Cavanna , A. Ouerghi , U. Gennser , I. Safi , C. Mora , A. Anthore

We report on the observation of Coulomb oscillations from localized quantum dots superimposed on the normal hopping current in ZnO nanowire transistors. The Coulomb oscillations can be resolved up to 20 K. Positive anisotropic…

Mesoscale and Nanoscale Physics · Physics 2010-11-08 Xiulai Xu , Andrew C. Irvine , Yang Yang , Xitian Zhang , David A. Williams

The investigation of curved low-dimensional systems is a topic of great research interest. Such investigations include two-dimensional systems with cylindrical symmetry. In this work, we present a numerical study of the electronic transport…

Mesoscale and Nanoscale Physics · Physics 2021-01-25 Felipe Serafim , Fernando A. N. Santos , Jonas R. F. Lima , Sébastien Fumeron , Bertrand Berche , Fernando Moraes

Two-dimensional materials are considered for future quantum devices and are usually produced by extensive methods like molecular beam epitaxy. We report on the fabrication of field-effect transistors using individual ultra-thin lead sulfide…

Materials Science · Physics 2015-07-20 Sedat Dogan , Thomas Bielewicz , Yuxue Cai , Christian Klinke

Resonant tunneling diodes are formed using AlN/GaN core-shell nanowire heterostructures grown by plasma assisted molecular beam epitaxy on n-Si(111) substrates. By using a coaxial geometry these devices take advantage of non-polar (m-plane)…

By developing a two-dimensional (2D) full quantum simulation, the attributes of carbon nanotube field-effect transistors (CNTFETs) in different temperatures have been comprehensively investigated. Simulations have been performed by…

Materials Science · Physics 2017-02-07 Ali Naderi , S. Mohammad Noorbakhsh , Hossein Elahipanah

Fluids confined within narrow channels exhibit a variety of phases and phase transitions associated with their reduced dimensionality. In this review paper, we illustrate the crossover from quasi-one dimensional to higher effective…

Statistical Mechanics · Physics 2015-05-14 Silvina M. Gatica , M. Mercedes Calbi , George Stan , R. Andreea Trasca , Milton W. Cole