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We calculate the dissipative dc conductivity of a two-dimensional electron system in a magnetic field for the situation when its effective temperature exceeds the temperature of the acoustic phonon system. We demonstrate that at…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. Ryzhii

Recent experiments claimed that the enhancement of catalytic reaction rates occurs via the reduction of activation barriers driven by non-equilibrium (``hot'') electrons in plasmonic metal nanoparticles. These experiments place plasmonic…

Chemical Physics · Physics 2020-04-22 Yonatan Sivan , Ieng Wai Un , Yonatan Dubi

We predict an anomalous thermally activated superradiance in molecular aggregates within polaritonic environments. In contrast to free space, the collective emission is enhanced when either the exciton-phonon coupling or the temperature…

Chemical Physics · Physics 2026-05-21 Yi-Ting Chuang , Liang-Yan Hsu

We demonstrate electron cooling in silicon using platinum silicide as a superconductor contact to selectively remove the highest energy electrons. The superconducting critical temperature of bulk PtSi is reduced from around 1 K to 0.79 K…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 M J Prest , J S Richardson-Bullock , Q T Zhao , J T Muhonen , D Gunnarsson , M Prunnila , V A Shah , T E Whall , E H C Parker , D R Leadley

The deposition of boron-doped amorphous carbon thin films on SiO2 substrate was achieved via a focused ion beam-assisted chemical vapor deposition of triphenyl borane (C18H15B) and triphenyl borate (C18H15BO3). The existence of boron in the…

In pulsed laser deposition, along the traditionally exploited deposition on the front-side of the plasma-plume, a coating forms on the surface of the target as well. For reproducibility, this residue is usually cleaned and discarded. Here…

Conductive polymers or "organic metals" are highly engineered nanostructured materials made from organic building blocks. They are candidates as molecular wires for nanotechnology applications in molecular electronics. The conduction in…

Materials Science · Physics 2008-09-23 Yomen Atassi , Mohammad Tally , Mazen Ismail

Vacuum breakdown in accelerator structures is a critical challenge that occurs under high electric fields. In environments subjected to hydrogen ion irradiation or high beam losses, such as in Radio-Frequency Quadrupoles (RFQ), residual…

Methanol occupies a central role in chemical synthesis and is considered an ideal candidate for cleaner fuel storage and transportation. It can be catalyzed from water and volatile organic compounds such as carbon dioxide, thereby offering…

Chemical Physics · Physics 2018-09-18 William Foster , Juan A. Aguilar , Halim Kusumaatmaja , Kislon Voïtchovsky

Climate emergency has led to the investigation of CO$_{2}$ valorization routes. A competitive process included in this framework is the catalytic CO$_{2}$ cycloaddition to epoxides, to produce cyclic carbonates. Halide-based Ionic liquids…

Soft Condensed Matter · Physics 2025-03-17 Sergio Dorado-Alfaro , Elisa Hernández , Jesús Algaba , Pablo Navarro , Felipe J. Blas , José Palomar

A fundamental understanding of plasma-catalyst interactions is important for understanding reaction mechanisms, optimizing the catalyst, and increasing the efficiency of plasma-assisted catalytic process for ammonia (\ce{NH3}) synthesis. We…

Plasma Physics · Physics 2021-11-09 S. Jaiswal , Zhe Chen , Sankaran Sundaresan , Bruce E Koel , Ahmed Diallo

Using first principles structure searching with density-functional theory (DFT) we identify a novel $Fm\bar{3}m$ phase of Cu$_2$P and two low-lying metastable structures, an $I\bar{4}3d$--Cu$_3$P phase, and a $Cm$--Cu$_3$P$_{11}$ phase. The…

Materials Science · Physics 2020-06-29 Angela F. Harper , Matthew L. Evans , Andrew J. Morris

Two series of ceria-praseodymia promoted Ni-alumina catalysts were prepared from two different commercial modified alumina supports by the incipient wetness impregnation method in two successive steps.The resulting materials were…

Bimetallic catalysts provide new routes toward sustainable ammonia synthesis, but the structural dynamics controlling their performance under real-world conditions remain poorly understood. Here, we combine in situ gas-cell and multimodal…

Biofuels have shown to be a reliable source of energy and a replication of fossil fuels. A well-known branch of biofuels is oxygenated ones derived from lignin compounds. Although a wide range of studies was done on oxygenated fuels,…

Fluid Dynamics · Physics 2018-06-20 Saeid Zare , Lameed Ayo Onigbanjo , Shrabanti Roy , Omid Askari

In situ electrochemical dilatometry was used to study, for the first time, the expansion behavior of a porous carbon electrode in a pure ionic liquid, 1-ethyl-3-methyl-imidazolium-tetrafluoroborate. For a single electrode, an applied…

Chemical Physics · Physics 2013-06-11 F. Kaasik , T. Tamm , M. M. Hantel , E. Perre , A. Aabloo , E. Lust , M. Z. Bazant , V. Presser

White light tunable phosphors are obtained from a sol-gel derived siliceous network to which oxyethylene units are covalently grafted by means of urea or urethane cross-linkages. The bright photoluminescence is ascribed to an unusual…

Materials Science · Physics 2007-05-23 L. D. Carlos , R. A. Sa Ferreira , V. De Zea Bermudez , Sidney J. L. Ribeiro

Metal-ion batteries are in huge demand to cope with the increasing need for renewable energy, especially in automobiles. In this work, we apply first-principle calculations to examine two-dimensional beryllium carbide (2D-Be2C) as a…

Materials Science · Physics 2025-11-03 Hetvi Jadav , Sadhana Matth , Himanshu Pandey

Based on the consideration of increasing the number of initial electrons and providing an appropriate distribution of electric field strength for discharge space, a method of adopting the wire-cylindrical type electrode structure with a…

Plasma Physics · Physics 2020-08-26 Shuai Zhao , Yong Hao , Tao Qiao , Weisheng Cui

Based on first-principles lattice dynamics and electron-phonon coupling calculations, B2C sheet is predicted to be a two-dimensional (2D) phonon-mediated superconductor with a relatively high transition temperature (Tc). The electron-phonon…

Materials Science · Physics 2012-04-10 Jun Dai , Zhenyu Li , Jinlong Yang , Jianguo Hou