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The evolution of the nanoporous structure of cylindrical sintered silver samples during high temperature aging, ranging from 200 {\textdegree}C to 350 {\textdegree}C for 350 min, is studied through in-situ Computed X-Ray Tomography.…

Electronic modes emerge within the band gap at nonzero temperature in strongly correlated insulators such as Mott and Kondo insulators, exhibiting momentum-shifted magnetic dispersion relations from the band edges. As the temperature…

Strongly Correlated Electrons · Physics 2024-07-10 Masanori Kohno

First order phase transitions occur discretely from one state to another, however they often display continuous behavior. To understand this nature, it is essential to probe how the emergent phase nucleates, interacts and evolves with the…

Mesoscale and Nanoscale Physics · Physics 2014-05-20 Yongseong Choi , David J. Keavney , Martin V. Holt , Vojtěch Uhlíř , Dario Arena , Eric E. Fullerton , Philip J. Ryan , Jong-Woo Kim

Electric dark spots are point singularities at which the electric field amplitude vanishes. These singularities usually emerge in real space accidentally and are unstable due to the vectorial property of the electric field. In this paper,…

Optics · Physics 2024-07-24 Tong Fu , Qing Tong , Shiqi Jia , Shubo Wang

Many applications of molecular layers deposited on metal surfaces, ranging from single-atom catalysis to on-surface magnetochemistry and biosensing, rely on the use of thermal cycles to regenerate the pristine properties of the system.…

Surface charging is a ubiquitous phenomenon with important consequences. On one hand, surface charging underpins emerging technologies such as triboelectric nanogenerators; on the other, uncontrolled charging can damage delicate…

Soft Condensed Matter · Physics 2025-08-13 Nitish Singh , Aaron D. Ratschow , Nabeel Aslam , Dan Daniel

When immiscible liquids are subject to electric fields interfacial forces arise due to a difference in the permittivity or the conductance of the liquids, and these forces lead to shape change in droplets or to interfacial instabilities. In…

Soft Condensed Matter · Physics 2017-01-11 Yael Katsir , Yoav Tsori

We use numerical simulations to study the dynamics of surface discharges, which are common in high-voltage engineering. We simulate positive streamer discharges that propagate towards a dielectric surface, attach to it, and then propagate…

Plasma Physics · Physics 2020-06-15 Xiaoran Li , Anbang Sun , Guanjun Zhang , Jannis Teunissen

We solve the dynamics of an ensemble of interacting rotors coupled to two leads at different chemical potential letting a current flow through the system and driving it out of equilibrium. We show that at low temperature the coarsening…

Disordered Systems and Neural Networks · Physics 2015-03-17 Camille Aron , Giulio Biroli , Leticia F. Cugliandolo

In this study, the melting and coalescence of Au nanoparticles were investigated using molecular dynamics simulation. The melting points of nanoparticles were calculated by studying the potential energy and Lindemann indices as a function…

Materials Science · Physics 2022-06-07 Reza Darvishi Kamachali

We have investigated several ultra-thin copper nanobridges between supporting layers using a classical molecular dynamics simulation and a many-body potential function of the second-moment approximation of tight-binding scheme. This…

Materials Science · Physics 2009-11-07 Jeong Won Kang , Ho Jung Hwang

In this work, we have studied the effects from increasing the strength of the applied electric field on the charge transport of hydrogenated graphitic fibers. Resistivity measurements were carried out for direct currents in the nA - mA…

Materials Science · Physics 2020-05-19 Nadina Gheorghiu , Charles R. Ebbing , Timothy J. Haugan

We use a fully 3-dimensional thermal evolution model to examine the effects of a non-uniform surface albedo on the subsurface thermal structure of comets. Surface albedo markings cast "thermal shadows", with strong lateral thermal…

Earth and Planetary Astrophysics · Physics 2015-05-30 A. Guilbert-Lepoutre , D. Jewitt

The decoherence of trapped-ion quantum gates due to heating of their motional modes is a fundamental science and engineering problem. This heating is attributed to electric-field noise arising from the trap-electrode surfaces. In this work,…

Atomic Physics · Physics 2017-03-15 E. Kim , A. Safavi-Naini , D. A. Hite , K. S. McKay , D. P. Pappas , P. F. Weck , H. R. Sadeghpour

A setup for studying the influence of external electric fields on dynamic surface processes is described. Spatially-extended homogeneous electric fields are realized by applying a DC voltage in between a planar electrode and a metallic…

Instrumentation and Detectors · Physics 2013-11-22 W. Steurer , S. Surnev , F. Hanauer , K. Ansperger , F. P. Netzer

Nanometer copper ferrite, as a kind of nanometer particle with catalytic activity, and its photothermal and magnetothermal effects as ferrite, can be widely used in different fields. It is a general way to obtain the nano effect of the…

Mesoscale and Nanoscale Physics · Physics 2023-01-04 Zihan Huang , Yiyi Hang

Using a phase-field model which incorporates enhanced diffusion at the nanowire surfaces, we study the effect of different parameters on the stability of intersecting nanowires. Our study shows that at the intersection of nanowires,…

Materials Science · Physics 2021-12-01 Abhinav Roy , Arjun Varma R , M P Gururajan

During the initial phase of microwave (MW) power launch inside a MW discharge ion source (MDIS), plasma and the electric fields are evolved with time together in the plasma volume. The spatio-temporal evolution pattern in the cavity of a…

Plasma Physics · Physics 2019-05-01 Chinmoy Mallick , Mainak Bandyopadhyay , Rajesh Kumar

In order to investigate the dependence of conditioning and field-holding on temperature, three pairs of copper electrodes underwent high voltage conditioning with direct current (DC) pulses while kept at a single temperature, unique for…

The Seebeck effect describes the generation of an electric potential in a conducting solid exposed to a temperature gradient. Besides fundamental relevance in solid state physics, it serves as a key quantity to determine the performance of…