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In the resonant tunneling regime sequential processes dominate single electron transport through quantum dots or molecules that are weakly coupled to macroscopic electrodes. In the Coulomb blockade regime, however, cotunneling processes…

Mesoscale and Nanoscale Physics · Physics 2018-12-12 Samuel L. Rudge , Daniel S. Kosov

We report on the observation of Kondo and split Kondo peaks in single-molecule transistors containing a single spin transition molecule with a Fe2+ ion. Coulomb blockade characteristics reveal a double quantum dot behavior in a parallel…

Mesoscale and Nanoscale Physics · Physics 2010-04-27 A. Bernand-Mantel , J. S. Seldenthuis , A. Beukman , H. S. J. van der Zant , V. Meded , R. Chandrasekhar , K. Fink , M. Ruben , F. Evers

We have developed a multi-scale self-consistent method to study the charge conductivity of a porous system or a metallic matrix alloyed by randomly distributed nonmetallic grains and vacancies by incorporating Schr\"{o}dinger's equation and…

Materials Science · Physics 2023-02-16 Elham Sharafedini , Hossein Hamzehpour , Mohammad Alidoust

We study theoretically the full distribution of transferred charge in a tunnel junction (or quantum point contact) coupled to a nanomechanical oscillator, as well as the conditional evolution of the oscillator. Even if the oscillator is…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. D. Bennett , A. A. Clerk

We study the statistics of charge transport in a chaotic cavity attached to external reservoirs by two openings of different size which transmit non-equal number of quantum channels. An exact formula for the cumulant generating function has…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 O. M. Bulashenko

Coulomb blockade phenomena and quantum fluctuations are studied in mesoscopic metallic tunnel junctions with high charging energies. If the resistance of the barriers is large compared to the quantum resistance, transport can be described…

Condensed Matter · Physics 2009-10-22 Herbert Schoeller , Gerd Schoen

Transport properties of granular systems are governed by Coulomb blockade effects caused by the discreteness of the electron charge. We show that, in the limit of vanishing mean level spacing on the grains, the low-temperature behavior of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Alexander Altland , Leonid I. Glazman , Alex Kamenev , Julia S. Meyer

We propose a highly-scalable method to compute the statistics of charge transfer in driven conductors. The framework can be applied in situations of non-zero temperature, strong coupling to terminals and in the presence of non-periodic…

We develop a theory of Coulomb blockade oscillations in transport and thermodynamic properties of a mesoscopic device having multiple charging energy modes. This setup can be realized using a nanoelectronic circuit comprising coupled hybrid…

Mesoscale and Nanoscale Physics · Physics 2025-01-23 D. B. Karki

Effects of the single-electron tunneling and the Coulomb blockade in a cluster structure (the molecular transistor) are investigated theoretically. In the framework of the particle-in-a-box model for the spherical and disk-shaped gold…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Valentin V. Pogosov , Eugene V. Vasyutin

We investigate equilibrium and non-equilibrium charge-transfer processes by performing high-resolution transport spectroscopy. Using electrostatically defined quantum dots for energy-selective emission and detection, we achieved…

We review several ways of defining the statistics of charge that is transmitted through an electric circuit, the so-called "counting statistics". We first pursue two approaches that explain the origin of "negative probabilities" that have…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Markus Kindermann , Yuli V. Nazarov

We investigate a dynamical Coulomb blockade effect and its role in the enhancement of current-current correlations in a three-terminal device with a multilevel splitter, as well as with two quantum dots. Spectral decomposition analysis…

Materials Science · Physics 2009-11-13 Bogdan R. Bulka

Low temperature electron transport measurements of single electron transistors fabricated in advanced CMOS technology with polysilicon gates not only exhibit clear Coulomb blockade behavior but also show a large number of additional…

Mesoscale and Nanoscale Physics · Physics 2014-01-08 Dharmraj Kotekar-Patil , Stefan Jauerneck , David Wharam , Dieter Kern , Xavier Jehl , Romain Wacquez , M. Sanquer

Electrons confined in semiconductor quantum dot arrays have both charge and spin degrees of freedom. The spin provides a well-controllable and long-lived qubit implementation. The charge configuration in the dot array is influenced by…

Mesoscale and Nanoscale Physics · Physics 2021-01-05 C. J. van Diepen , T. -K. Hsiao , U. Mukhopadhyay , C. Reichl , W. Wegscheider , L. M. K. Vandersypen

We study the thermoelectric transport of a small metallic island weakly coupled to two electrodes by tunnel junctions. In the Coulomb blockade regime, in the case when the ground state of the system corresponds to an even number of…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 A. S. Vasenko , D. M. Basko , F. W. J. Hekking

Randomly-distributed offset charges affect the nonlinear current-voltage property via the fluctuation of the threshold voltage of Coulomb blockade arrays. We analytically derive the distribution of the threshold voltage for a model of…

Statistical Mechanics · Physics 2012-02-16 Takayuki Narumi , Masaru Suzuki , Yoshiki Hidaka , Tetsuya Asai , Shoichi Kai

The fluctuations and the distribution of the conductance peak spacings of a quantum dot in the Coulomb-blockade regime are studied and compared with the predictions of random matrix theory (RMT). The experimental data were obtained in…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 F. Simmel , T. Heinzel , D. A. Wharam

We report low-temperature electrical transport studies of molecule-scale silicon nanowires. Individual nanowires exhibit well-defined Coulomb blockade oscillations characteristic of charge addition to a single nanostructure with length…

Materials Science · Physics 2015-06-24 Zhaohui Zhong , Ying Fang , Wei Lu , Charles M. Lieber

In all theoretical treatments of electron transport through single molecules between two metal electrodes, a clear distinction has to be made between a coherent transport regime with a strong coupling throughout the junction and a Coulomb…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Robert Stadler , Jerome Cornil , Victor Geskin
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