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Ultrafast laser excitation can induce fast increases of the electronic subsystem temperature. The subsequent electronic evolutions in terms of band structure and energy distribution can determine the change of several thermodynamic…

Materials Science · Physics 2015-03-25 Emile Bévillon , Jean-Philippe Colombier , Vanina Recoules , Razvan Stoian

So far, the efficiency of thermoelectric energy conversion remains low compared to traditional technologies, such as coal or nuclear. This low efficiency can be explained by connecting the thermoelastic properties of the electronic working…

Materials Science · Physics 2024-02-28 I. Khomchenko , H. Ouerdane , G. Benenti

We present a realisation of high bandwidth instrumentation at cryogenic temperatures and for dilution refrigerator operation that possesses advantages over methods using radio-frequency single electron transistor or transimpedance…

Switching the magnetization of a shape-anisotropic 2-phase multiferroic nanomagnet with voltage-generated stress is known to dissipate very little energy ($<$ 1 aJ for a switching time of $\sim$0.5 ns) at 0 K temperature. Here, we show by…

Mesoscale and Nanoscale Physics · Physics 2012-08-02 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha

We reveal a wealth of nonlinear and recoil effects in the interaction between individual low-energy electrons and samples comprising a discrete number of states. Adopting a quantum theoretical description of combined free-electron and…

Quantum Physics · Physics 2022-09-12 F. Javier García de Abajo , Eduardo J. C. Dias , Valerio Di Giulio

We demonstrate the transmission of single electron wavepackets from a clock-controlled source through an empty high-energy edge channel. The quantum dot source is loaded with single electrons which are then emitted with high kinetic energy…

Mesoscale and Nanoscale Physics · Physics 2014-08-27 J. D. Fletcher , M. Kataoka , H. Howe , M. Pepper , P. See , S. P. Giblin , J. P. Griffiths , G. A. C. Jones , I. Farrer , D. A. Ritchie , T. J. B. M. Janssen

The process of deriving an interatomic potentials represents an attempt to integrate out the electronic degrees of freedom from the full quantum description of a condensed matter system. In practice it is the derivatives of the interatomic…

Materials Science · Physics 2016-06-23 G. J. Ackland

The quantum efficiency, which characterizes the quality of information gain against information loss, is an important figure of merit for any realistic quantum detectors in the gradual process of collapsing the state being measured. In this…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Yin Ye , Jing Ping , HuJun Jiao , Shu-Shen Li , Xin-Qi Li

We offer a general approach to calculation of single-electron tunneling spectra and conductance of a shuttle oscillating between two half-metallic leads with fully spin polarized carriers. In this case the spin-flip processes are completely…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 G. Cohen , V. Fleurov , K. Kikoin

We analyze the effects of electron-electron and electron-phonon interactions in the dynamics of a system of two or three electrons that can be trapped to a localized state and detrapped to ab extended band states of a quantum dot using a…

Mesoscale and Nanoscale Physics · Physics 2025-12-11 R. Carmina Monreal

In the design of quantum computer architectures that take advantage of the long coherence times of dopant nuclear and electron spins in the solid-state, single-spin detection for readout remains a crucial unsolved problem. Schemes based on…

Quantum Physics · Physics 2010-06-29 L. C. L. Hollenberg , C. J. Wellard , C. I. Pakes , A. G. Fowler

The concept of the energy gap is a fundamental characteristic of the band structure of a material and it determines its physical properties. Formally the energy gap appears in the dispersion relation $E_k$, where the vector $k$ is…

Strongly Correlated Electrons · Physics 2023-08-16 Yuriy Yerin , A. A. Varlamov , Roberto Felici , Aldo Di Carlo

We investigate the distribution of waiting times between electrons emitted from a periodically driven single-electron turnstile. To this end, we develop a scheme for analytic calculations of the waiting time distributions for arbitrary…

Mesoscale and Nanoscale Physics · Physics 2017-07-26 Elina Potanina , Christian Flindt

We present a linear-response theory for the thermopower of a single-electron transistor consisting of a superconducting island weakly coupled to two normal-conducting leads (NSN SET). The thermopower shows oscillations with the same…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Turek , J. Siewert , K. Richter

Modern digital electronics support remarkably reliable computing, especially given the challenge of controlling nanoscale logical components that interact in fluctuating environments. However, we demonstrate that the high-reliability limit…

Statistical Mechanics · Physics 2020-10-07 P. M. Riechers , A. B. Boyd , G. W. Wimsatt , J. P. Crutchfield

We characterize the energy loss of the non-equilibrium electron system in individual metallic single-walled carbon nanotubes at low temperature. Using Johnson noise thermometry, we demonstrate that, for a nanotube with ohmic contacts, the…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Daniel F. Santavicca , Joel D. Chudow , Daniel E. Prober , Meninder S. Purewal , Philip Kim

Single-electron pumps based on semiconductor quantum dots are promising candidates for the emerging quantum standard of electrical current. They can transfer discrete charges with part-per-million (ppm) precision in nanosecond time scales.…

Mesoscale and Nanoscale Physics · Physics 2017-11-15 R. Zhao , A. Rossi , S. P. Giblin , J. D. Fletcher , F. E. Hudson , M. Möttönen , M. Kataoka , A. S. Dzurak

We discuss several general aspects of the free energy of the standard model at high temperatures. In particular the Clausius-Clapeyron equation is shown to yield a relation between the latent heat and the jump in the order parameter. The…

High Energy Physics - Phenomenology · Physics 2016-09-01 W. Buchmuller , Z. Fodor , A. Hebecker

We use trajectory averaging to show that the energy dissipated in the nonequilibrium energy-state transitions of a driven two-state system satisfies a fluctuation-dissipation relation. This connection between the average energy dissipation…

Mesoscale and Nanoscale Physics · Physics 2023-05-16 Tuomas Pyhäranta , Luca Peliti , Jukka P. Pekola

A thermoelectric generator converts a temperature difference into electrical energy. Its energy conversion efficiency is determined by the steady-state temperature distribution inside the generator. By assuming the thermoelectric material…

Classical Analysis and ODEs · Mathematics 2022-06-16 Jaywan Chung , Byungki Ryu , Hyowon Seo