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A spilt-ring resonator experiment suitable for senior physics undergraduates is described and demonstrated in detail. The apparatus consists of a conducting hollow cylinder with a narrow slit along its length and can be accurately modelled…

Physics Education · Physics 2018-11-06 J. S. Bobowski

Single-electron pumps based on isolated impurity atoms have recently been experimentally demonstrated. In these devices the Coulomb potential of an atom creates a localised electron state with a large charging energy and considerable…

Mesoscale and Nanoscale Physics · Physics 2017-03-21 J. van der Heijden , G. C. Tettamanzi , S. Rogge

Temperature is a fundamental parameter in the study of physical phenomena. At the nanoscale, local temperature differences can be harnessed to design novel thermal nanoelectronic devices or test quantum thermodynamical concepts. Determining…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 Imtiaz Ahmed , Anasua Chatterjee , Sylvain Barraud , John J. L. Morton , James A. Haigh , M. Fernando Gonzalez-Zalba

We have employed a tunable Cooper-pair transistor, the sluice, with radio frequency control to pump current over a resistive circuit. We find that the charge transferred per pumping cycle can be controlled with the resolution of a single…

Superconductivity · Physics 2007-05-23 Juha J. Vartiainen , Mikko Mottonen , Jukka Pekola , Antti Kemppinen

Single electron pumps are set to revolutionize electrical metrology by enabling the ampere to be re-defined in terms of the elementary charge of an electron. Pumps based on lithographically-fixed tunnel barriers in mesoscopic metallic…

New results are reported from a measurement of $\pi^0$ electroproduction near threshold using the $p(e,e^{\prime} p)\pi^0$ reaction. The experiment was designed to determine precisely the energy dependence of $s-$ and $p-$wave…

A conducting bridge of a single hydrogen molecule between Pt electrodes is formed in a break junction experiment. It has a conductance near the quantum unit, G_0 = 2e^2/h, carried by a single channel. Using point contact spectroscopy three…

Mesoscale and Nanoscale Physics · Physics 2017-12-11 D. Djukic , K. S. Thygesen , C. Untiedt , R. H. M. Smit , K. W. Jacobsen , J. M. van Ruitenbeek

A room temperature single-electron transistor based on the single cluster molecule has been demonstrated for the first time. Scanning tunneling microscope tip was used to study the transport via single carboran cluster molecule…

Resistive Plate Chambers (RPCs) exhibit a significant loss of efficiency for the detection of particles, when subjected to high particle fluxes. This rate limitation is related to the usually high resistivity of the resistive plates used in…

Instrumentation and Detectors · Physics 2015-09-08 M. Affatigato , U. Akgun , B. Bilki , F. Corriveau , B. Freund , N. Johnson , C. Neubueser , Y. Onel , J. Repond , L. Xia

Controlling electrons at the level of elementary charge $e$ has been demonstrated experimentally already in the 1980's. Ever since, producing an electrical current $ef$, or its integer multiple, at a drive frequency $f$ has been in a focus…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 J. P. Pekola , O. -P. Saira , V. F. Maisi , A. Kemppinen , M. Möttönen , Yu. A. Pashkin , D. V. Averin

We have suspended an Al based single-electron transistor whose island can resonate freely between the source and drain leads forming the clamps. In addition to the regular side gate, a bottom gate with a larger capacitance to the SET island…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Yu. A. Pashkin , T. F. Li , J. P. Pekola , O. Astafiev , D. A. Knyazev , F. Hoehne , H. Im , Y. Nakamura , J. S. Tsai

The Recycler Electron cooler was the first (and so far, the only) cooler working at a relativistic energy ({\gamma} = 9.5). It was successfully developed in 1995-2004 and was in operation at Fermilab in 2005-2011, providing cooling of…

Accelerator Physics · Physics 2013-06-14 A. Shemyakin , L. R. Prost

We describe the first precision measurement of the electron's electric dipole moment (eEDM, $d_e$) using trapped molecular ions, demonstrating the application of spin interrogation times over 700 ms to achieve high sensitivity and stringent…

The Run-1 of the LHC was very successful for single top physics. The main single top production mode, $t-$channel, is now well established. The $t-$channel cross-section was measured with unprecedented precision and $t-$channel events have…

High Energy Physics - Experiment · Physics 2015-10-20 Rebeca Gonzalez Suarez

The design, construction, installation, and testing of a Faraday Cup intended to measure the current of a 3 MeV, 1 microampere electron beam is described. Built as a current monitor for a M{\o}ller scattering measurement at the MIT High…

In this paper, we consider a one-loop thermal correction to the $g$-factors of the ground and low-lying excited states in neutral alkaline-like atomic systems. As an example, we carried out calculations for Rb and Cs atoms, where optical…

Atomic Physics · Physics 2022-12-26 T. Zalialiutdinov , Y. Kozhedub , D. Solovyev

Recent years have shown steady progress in research towards molecular electronics [1,2], where molecules have been investigated as switches [3-5], diodes [6], and electronic mixers [7]. In much of the previous work a Scanning Tunnelling…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 R. H. M. Smit , Y. Noat , C. Untiedt , N. D. Lang , M. van Hemert , J. M. van Ruitenbeek

Resistive Plate Chambers (RPCs) are essential active media of large-scale experiments as part of the muon systems and (semi-)digital hadron calorimeters. Among the several outstanding issues associated with the RPCs, the loss of efficiency…

Instrumentation and Detectors · Physics 2023-07-19 Mehmet Tosun , Burak Bilki , Kutlu Kagan Sahbaz

We calculate the linear-response conductance of a metallic single-electron pump using the path-integral Monte Carlo (PIMC) method. The Coulomb oscillations of the conductance are calculated to illustrate the influence of the Coulomb…

Mesoscale and Nanoscale Physics · Physics 2025-03-12 Prathan Srivilai , Tawan Thongsuk , Pipat Harata

Temperature dependent measurements of the resistivity on RuIn$_3$ single crystals show a semiconducting behaviour, in contrast to previously published results. In the high temperature range the semiconducting gap was measured to be…

Materials Science · Physics 2007-08-29 D. Bogdanov , K. Winzer , I. A. Nekrasov , T. Pruschke