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The interface between the tetrathiafulvalene / tetracyanoquinodimethane (TTFTCNQ) organic blend and the Au(111) metal surface is analyzed by Density Functional Theory calculations, including the effect of the charging energies on the…

Materials Science · Physics 2013-07-12 Jose Ignacio Martinez , Enrique Abad , Juan Beltran , Fernando Flores , Jose Ortega

Significant changes of the relative permittivity of a silver film have been detected using the surface plasmon resonance (SPR) method when a constant electric field is applied to a MDM (metal-dielectric-metal) nanostructure. The structure…

Materials Science · Physics 2012-05-08 B. V. Kryzhanovsky , A. N. Palagushkin , S. A. Prokopenko , A. P. Sergeev , A. O. Melikyan

One of the early triumphs of quantum physics is the explanation why some materials are metallic whereas others are insulating. While a treatment based on single electron states correctly predicts the character of most materials this…

Strongly Correlated Electrons · Physics 2015-09-02 S. Friedemann , H. Chang , M. B. Gamża , P. Reiss , X. Chen , P. Alireza , W. A. Coniglio , D. Graf , S. Tozer , F. M. Grosche

We report the enhancement of the optical second harmonic signal in non-centrosymmetric semiconductor CdS quantum dots, when they are placed in close contact with isolated silver nanoparticles. The intensity enhancement is about 1000. We…

Mesoscale and Nanoscale Physics · Physics 2012-02-15 Pablo M. Jais , Catalina von Bilderling , Andrea V. Bragas

The dynamics of heavy-ion reactions at Fermi energies is dominated by a dissipative mechanism modified by the concurrent emission of non-statistical nucleons, light particles, and nuclear clusters. Experimental observables are available to…

Nuclear Experiment · Physics 2007-05-23 W. Udo Schroeder , Jan Toke

The Fermi acceleration model was introduced to describe how cosmic ray particles are accelerated to great speeds by interacting with moving magnetic fields. We identify a new variation of the model where light ions interact with a moving…

Plasma Physics · Physics 2022-02-02 J. C. Waybright , M. E. Mlodik , N. J. Fisch

We investigate the thermopower of a metal-molecule-metal junction taking into account thermal effects on the junction. Based on analytical expressions and numerical simulations we show that the thermoelectric potential reveals valuable…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Dvira Segal

Point defects introduce localized electronic states that critically affect carrier trapping, recombination, and transport in functional materials. The associated charge transition levels (CTLs) can depend on temperature, requiring accurate…

Materials Science · Physics 2025-12-18 Tobias Hainer , Ethan Berger , Esmée Berger , Olof Hildeberg , Paul Erhart , Julia Wiktor

Hybrid nanocomposites can offer a wide range of opportunities to control the light-matter interac- tion and electromagnetic energy flow at the nanoscale, leading to exotic optoelectronic devices. We study theoretically the dipole-dipole…

Optics · Physics 2018-05-08 Mariam Tohari , Andreas Lyras , Mohamad AlSalhi

Iron-based compounds (IBS) display a surprising variety of superconducting properties that seems to arise from the strong sensitivity of these systems to tiny details of the lattice structure. In this respect, systems that become…

The features of electron assisted neutron exchange processes in crystalline solids are survayed. It is stated that, contrary to expectations, the cross section of these processes may reach an observable magnitude even in the very low energy…

General Physics · Physics 2017-01-25 Péter Kálmán , Tamás Keszthelyi

Alloyed metal nanoparticles are a promising platform for plasmonically enabled hot-carrier generation, which can be used to drive photochemical reactions. Although the non-plasmonic component in these systems has been investigated for its…

Mesoscale and Nanoscale Physics · Physics 2024-08-15 Jakub Fojt , Tuomas P. Rossi , Priyank V. Kumar , Paul Erhart

We derive a generic formalism for studying the energy conversion processes in bounded metals. Using this formalism we show that in the collision-less limit the Fermi sea of metals should experience an instability against surface plasma…

Mesoscale and Nanoscale Physics · Physics 2017-10-24 Hai-Yao Deng

The physical origin of Fermi level pinning (FLP) at metal/Ge interfaces has been argued over a long period. Using the Fe$_{3}$Si/Ge(111) heterostructure developed originally, we can explore electrical transport properties through atomically…

Mesoscale and Nanoscale Physics · Physics 2012-01-31 K. Kasahara , S. Yamada , K. Sawano , M. Miyao , K. Hamaya

Under the local plasmonic excitation, the Raman images of a single molecule can now reach sub-nanometer resolution. We report here a theoretical description of the interaction between a molecule and a highly confined plasmonic field. It is…

Mesoscale and Nanoscale Physics · Physics 2015-08-06 Sai Duan , Guangjun Tian , Yongfei Ji , Jiushu Shao , Zhenchao Dong , Yi Luo

Ga2O3 is being actively explored for high-power and high-temperature electronics, deep-ultraviolet optoelectronics, and other applications. Efficient n-type doping of Ga2O3 has been achieved, but p-type doping faces fundamental obstacles…

Materials Science · Physics 2021-07-28 Anuj Goyal , Andriy Zakutayev , Vladan Stevanović , Stephan Lany

We consider the absorption spectrum of a Fermi gas mixed with a minority species when majority fermions are transferred to another internal state by an external probe. In the limit when the minority species is much more massive than the…

Quantum Gases · Physics 2010-04-13 G. M. Bruun , C. J. Pethick , Zhenhua Yu

Using a wave packet propagation approach, we find that the resonant charge transfer process of H^- near a Cu(111) surface is strongly influenced by transient hybrid states. These states originate from an ion-induced confinement parallel to…

Atomic Physics · Physics 2007-05-23 Himadri S. Chakraborty , Thomas Niederhausen , Uwe thumm

MnSi has been extensively studied for five decades, nonetheless detailed information on the Fermi surface (FS) symmetry is still lacking. This missed information prevented from a comprehensive understanding the nature of the magnetic…

Heat transfer is studied in the system of electron double layers of correlated composite fermion quantum liquids. In the near-field regime, the primary mechanism governing interlayer energy transfer is mediated by the Coulomb interaction of…

Mesoscale and Nanoscale Physics · Physics 2024-04-16 Dmitry Zverevich , Alex Levchenko