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Related papers: Theory for the electromigration wind force in dilu…

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We study the effects of the electromagnetic vacuum on the motion of a nonrelativistic electron. First, we derive the equation of motion for the expectation value of the electron's position operator. We show how this equation has the same…

Quantum Physics · Physics 2023-06-02 Anirudh Gundhi , Angelo Bassi

We report on the application of a feedback-controlled electromigration technique for the formation of nanometer-sized gaps in mesoscopic gold wires and rings. The effect of current density and temperature, linked via Joule heating, on the…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Birgit Kießig , Hilbert v. Löhneysen , Roland Schäfer

We describe our theoretical formalism and computational scheme for making ab-initio calculations of the dynamic paramagnetic spin susceptibilities of metals and alloys at finite temperatures. Its basis is Time-Dependent Density Functional…

Strongly Correlated Electrons · Physics 2009-10-31 J. B. Staunton , J. Poulter , B. Ginatempo , E. Bruno , D. D. Johnson

In this letter, we theoretically study the electron mobility in few-layer MoxW1-xS2 as limited by various scattering mechanisms. The room temperature energy-dependent scattering times corresponding to polar longitudinal optical (LO) phonon,…

Mesoscale and Nanoscale Physics · Physics 2015-09-15 Hareesh Chandrasekar , Digbijoy Neelim Nath

We have fabricated single-electron transistors from individual metal nanoparticles using a geometry that provides improved coupling between the particle and the gate electrode. This is accomplished by incorporating a nanoparticle into a gap…

Condensed Matter · Physics 2009-11-10 K. I. Bolotin , F. Kuemmeth , A. N. Pasupathy , D. C. Ralph

Transport properties of degenerate relativistic electrons along quantizing magnetic fields in neutron star crusts are considered. A kinetic equation is derived for the spin polarization density matrix of electrons. Its solution does not…

Astrophysics · Physics 2011-05-23 A. Y. Potekhin

We validate the application of our recent orbital-free density functional theory (DFT) approach, [Phys. Rev. Lett. 113, 155006 (2014)], for the calculation of ionic and electronic transport properties of dense plasmas. To this end, we…

Plasma Physics · Physics 2015-12-16 Travis Sjostrom , Jérôme Daligault

Photoemission experiments involve the motion of an electron near a conducting surface. This necessarily generates heat by ohmic losses from eddy currents. This inelastic scattering of the electrons will result in a downward shift in…

Strongly Correlated Electrons · Physics 2007-05-23 Robert Haslinger , Robert Joynt

The transport of deformable particles through porous media underlies a wealth of applications ranging from filtration to oil recovery to the transport and spreading of biological agents. Using direct numerical simulations, we analyze the…

Soft Condensed Matter · Physics 2020-06-09 Brato Chakrabarti , Charles Gaillard , David Saintillan

In this work, we study the elastic scattering behavior of electron vortices when propagating through amorphous samples. We use a formulation of the multislice approach in cylindrical coordinates to theoretically investigate the…

Materials Science · Physics 2021-03-22 Stefan Löffler , Stefan Sack , Thomas Schachinger

We simulate structure in the vicinity of different size nanovoids using a new variant of the Molecular Statics, wherein atomic structure in the vicinity of nanovoids and the parameters that define the displacements of atoms placed in…

Materials Science · Physics 2022-02-02 A. V. Nazarov , A. P. Melnikov , A. A. Mikheev , I. V. Ershova

We present a theoretical study of the interaction of vacancies with a tilt grain boundary in aluminum based on the density functional theory. The grain boundary volume expansion and vacancy induced contraction are calculated and compared…

Materials Science · Physics 2009-11-07 Gang Lu , Nicholas Kioussis

The vacancy concentration at finite temperatures is studied for a series of (CoCrFeMn)$_{1-x_\mathrm{Ni}}$Ni$_{x_\mathrm{Ni}}$ alloys by grand-canonical Monte-Carlo (MC) simulations. The vacancy formation energies are calculated from a…

Materials Science · Physics 2021-06-28 Daniel Utt , Alexander Stukowski , Karsten Albe

Plasmon drag effect is studied theoretically and experimentally in gold films with a sine-wave height profile. Numerical simulations based on the modified electromagnetic momentum loss approach are shown to correctly describe the…

Materials Science · Physics 2016-03-25 N. Noginova , M. LePain , V. Rono , S. Masshadi , R. Hussain , M. Durach

While methods based on density-functional perturbation theory have dramatically improved our understanding of electron-phonon contributions to transport in materials, methods for accurately capturing electron-electron scattering relevant to…

The interactions between electrons and lattice vibrational modes play the key role in determining the carrier transport properties, thermoelectric performance and other physical quantities related to phonons in semiconductors. However, for…

Previous formulations of heating and transport associated with strong magnetohydrodynamic (MHD) turbulence are generalized to incorporate separate internal energy equations for electrons and protons. Electron heat conduction is included.…

Solar and Stellar Astrophysics · Physics 2015-05-13 B. Breech , W. H. Matthaeus , S. R. Cranmer , J. C. Kasper , S. Oughton

A fluctuating-valence impurity in a metal is quantum-critical unlike a Kondo impurity which has the properties of a local Fermi-liquid. A systematic theory for the fluctuating-valence lattice is constructed, based on the hybridization and…

Strongly Correlated Electrons · Physics 2024-06-19 C. M. Varma

A theory describing the forces governing the self-assembly of nanoparticles at the solid-liquid interface is developed. In the process, new theoretical results are derived to describe the effect that the field penetration of a point-like…

Mesoscale and Nanoscale Physics · Physics 2017-09-19 Ryan-Rhys Griffiths

Over the last few years, $ab~initio$ methods have become an increasingly popular tool to evaluate intrinsic carrier transport properties in 2D materials. The lack of experimental information, and the progress made in the development of DFT…

Materials Science · Physics 2019-12-10 Gautam Gaddemane , Sanjay Gopalan , Maarten Van de Put , Massimo V Fischetti
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