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We report measurements of the rectification of microwave radiation (0.7-20 GHz) at the boundary between two-dimensional electron systems separated by a narrow gap on a silicon surface for different temperatures, electron densities and…

Strongly Correlated Electrons · Physics 2007-10-24 N. Romero Kalmanovitz , I. Hoxha , Y. Jin , S. A. Vitkalov , M. P. Sarachik , Ivan A. Larkin , T. M. Klapwijk

A reconstruction technique based on the solution of the Radon transform in terms of Jacobi polynomials is used to obtain the 3D electron momentum density rho(p) from nine high-resolution Compton profiles (CPs) for a Cu0.9Al0.1 disordered…

In this paper, we study the effects of the interparticle interaction range on heat flow. We show that, by increasing the interaction range, we may amplify the thermal conductivity and even change the regime of heat transport. More…

Statistical Mechanics · Physics 2015-06-17 Emmanuel Pereira , Ricardo R. Ávila

Heat and noise control is essential for the continued development of quantum technologies. For this purpose, a particularly powerful tool is the heat rectifier, which allows for heat transport in one configuration of two baths but not the…

Quantum Physics · Physics 2022-09-13 Kasper Poulsen , Nikolaj T. Zinner

We report a novel approach for crafting robust diamond/\b{eta}-Ga2O3 hetero-p-n-junctions through the mechanical integration of their bulk materials. This resulting heterojunction, with a turn-on voltage of ~2.7 V at room temperature,…

Materials Science · Physics 2023-11-29 Imteaz Rahaman , Hunter D. Ellis , Kai Fu

Bipolar nanochannels comprising two domains of positively and negatively charged walls along the pore axis are known to rectify current when exposed to an electric potential bias. We find that addition of charged nanoparticles can increase…

Ionization chambers are essential for activity determinations in radionuclide metrology. We have developed a high-precision integrating-differentiating (int-diff) system for measuring small currents. It is anticipated to enhance the…

Instrumentation and Detectors · Physics 2025-03-06 Shunyi Liang , Juncheng Liang , Kezhu Song , Yijie Jiang , Zhijie Yang

Emergent phenomena at interfaces between oxides and metals can appear due to charge transfer and mass transport that modify the bulk properties. By coating the metallic oxide LaNiO$_3$ by aluminium, we fabricated a junction exhibiting a…

Materials Science · Physics 2018-04-23 Joseph Scola , Bruno Berini , Yves Dumont , Pavan Nukala , Brahim Dkhil

We investigate the photon-mediated thermal transport between a superconducting electrode and a normal metal. When the quasiparticle contribution can be neglected, the photon-mediated channel becomes an efficient heat transport relaxation…

Mesoscale and Nanoscale Physics · Physics 2021-01-13 G. Marchegiani , A. Braggio , F. Giazotto

A picoammeter system has been developed and engineering. It consists in a current-voltage converter, based on an operational amplifier with very low input current, a high precision ADC, a radio controlled data acquisition unit and the…

Instrumentation and Detectors · Physics 2018-03-09 M. Bari , B. Gobbo , S. Dalla Torre , M. Gregori , S. Levorato , G. Menon , F. Tessarotto

Semiconducting diode with nonreciprocal transport effect underlies the cornerstone of contemporary integrated circuits (ICs) technology. Due to isotropic superconducting properties and the lack of breaking of inversion symmetry for…

Nonlinear electrical properties of graphene-based three-terminal nanojunctions are presented. Intrinsic rectification of voltage is observed up to room temperature. The sign and the efficiency of the rectification can be tuned by a gate.…

Mesoscale and Nanoscale Physics · Physics 2010-07-23 A. Jacobsen , I. Shorubalko , L. Maag , U. Sennhauser , K. Ensslin

With the advent of high precision neutrino scattering experiments comes the need for improved radiative corrections. We present a phenomenological analysis of some contributions to the production of photons in neutrino neutral current…

High Energy Physics - Phenomenology · Physics 2009-09-24 James Jenkins , Terry Goldman

The discovery of high-transition temperature (high-Tc) superconductivity near antiferromagnetism in iron arsenides raised the possibility of an unconventional superconducting mechansim1-8. The observation of clear Fermi surfaces and…

We study a one-dimensional chain of identical atoms with two electronic orbitals and two electrons per atom, subject to an external oscillating pressure that periodically modulates the lattice spacing. This leads to time-dependent intra-…

Mesoscale and Nanoscale Physics · Physics 2025-11-18 Anwesha Chattopadhyay

Phase change thermal diodes (PCTD) suffer from fairly low thermal rectification ratio, which hampers their widespread utilization as thermal management and control units for cutting-edge technologies, encompassing photovoltaics,…

Applied Physics · Physics 2018-11-06 Zhaonan Meng , Raza Gulfam , Peng Zhang , Fei Ma

We present a sensitive, tunable radio-frequency resonator designed to detect reactive changes in nanoelectronic devices down to dilution refrigerator temperatures. The resonator incorporates GaAs varicap diodes to allow electrical tuning of…

Mesoscale and Nanoscale Physics · Physics 2019-03-28 David J. Ibberson , Lisa A. Ibberson , Geoff Smithson , James A. Haigh , Sylvain Barraud , M. Fernando Gonzalez-Zalba

Relativistic close coupling calculations are reported for unified electronic recombination of (e + C IV) including non-resonant and resonant recombination processes, radiative and dielectronic recombination (RR and DR). Detailed comparison…

Astrophysics · Physics 2008-11-26 Anil K. Pradhan , Guo Xin Chen , Sultana N. Nahar , Hong Lin Zhang

Silicon carbide (SiC) is a wide band gap semiconductor and an attractive candidate for applications in harsh environments such as space, fusion, or future high luminosity colliders. Due to the large band gap, the leakage currents in SiC…

Instrumentation and Detectors · Physics 2023-10-04 Andreas Gsponer , Philipp Gaggl , Jürgen Maier , Richard Thalmeier , Simon Emanuel Waid , Thomas Bergauer

We provide convincing empirical evidence that long range interactions strongly enhance the rectification effect which takes place in mass graded systems. Even more importantly the rectification does not decrease with the increase of the…

Statistical Mechanics · Physics 2015-08-27 Shunda Chen , Emmanuel Pereira , Giulio Casati
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