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We present measurements of the electric potential fluctuations on the surface of highly oriented pyrolytic graphite using electrostatic force and atomic force microscopy. Micrometric domain-like potential distributions are observed even…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yonghua Lu , M. Munoz , C. S. Steplecaru , Cheng. Hao , Ming Bai , N. Garcia , K. Schindler , P. Esquinazi

Electronic and magnetic structure of $(100)$ films of K and Cs are calculated within the plane-wave projector augmented wave (PAW) formalism of the density functional theory (DFT) using both local spin density approximation (LSDA) and the…

Materials Science · Physics 2007-11-30 Prasenjit Sen

Using the Finite Difference Time Domain method, we solve Maxwell's equations numerically and compute the distribution of electromagnetic fields and forces inside material media. The media are generally specified by their dielectric…

Optics · Physics 2013-08-19 Masud Mansuripur , Armis R. Zakharian , Ewan M. Wright

The effect of an electric field on the conductance of ultrathin films of metals deposited on substrates coated with a thin layer of amorphous Ge was investigated. A contribution to the conductance modulation symmetric with respect to the…

Superconductivity · Physics 2009-11-07 N. Markovic , C. Christiansen , G. Martinez-Arizala , A. M. Goldman

We consider films and filaments of nanoscale thickness on thermally conductive substrates exposed to external heating. Particular focus is on metal films exposed to laser irradiation. Due to short length scales involved, the absorption of…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Ivana Seric , Shahriar Afkhami , Lou Kondic

The effect of plasma irradiation is studied systematically on a 4H polytype (002) oriented ${\rm CdI_2}$ stoichiometric film having compressive residual stress. Plasma irradiation was found to change the orientation to (110) of the film at…

Materials Science · Physics 2009-11-10 R. S. Rawat , P. Arun , A. G. Vedeshwar , P. Lee , S. Lee

Films are nanoscopic elements of foams, emulsions and suspensions, and form a paradigm for nanochannel transport that eventually tests the limits of hydrodynamic descriptions. Here, we study the collapse of a freestanding film to its…

Fluid Dynamics · Physics 2018-04-16 Michael Winkler , Guggi Kofod , Rumen Krastev , Silke Stöckle , Markus Abel

It is shown that for thin metal films, thickness of which does not exceed a thickness of a skin-layer, the problem allows analytical solution for any boundary conditions. The analysis of transmission, reflection and absorption of an…

Mathematical Physics · Physics 2010-10-12 A. V. Latyshev , A. A. Yushkanov

Results are presented for spin-wave dispersions in geometrically frustrated stacked triangular antiferromagnets with a thin film or semi-infinite geometry having either zero, easy-plane, or easy-axis anisotropy. Surface effects on the…

Materials Science · Physics 2009-11-13 E. Meloche , M. L. Plumer , C. M. Pinciuc

We report a significant change in friction of a $\rm La_{0.55}Ca_{0.45}MnO_3$ thin film measured as a function of the materials resistive state under ultrahigh vacuum conditions at room temperature by friction force microscopy. While…

Materials Science · Physics 2016-11-09 Hendrik Schmidt , Jon-Olaf Krisponeit , Konrad Samwer , Cynthia A. Volkert

The magnetization dynamics induced by standing elastic waves excited in a thin ferromagnetic film is described with the aid of micromagnetic simulations taking into account the magnetoelastic coupling between spins and lattice strains. The…

Mesoscale and Nanoscale Physics · Physics 2016-11-10 A. V. Azovtsev , N. A. Pertsev

We consider a semiconductor in a non-equilibrium steady state, with a dc current. On top of the stationary carrier motion there are fluctuations. It is shown that the stationary motion of the carriers (i.e., their drift) can have a profound…

Other Condensed Matter · Physics 2015-05-18 Boris Shapiro

Ferromagnetic particles are incorporated in a thin soft elastic matrix. A lamella, made of this smart material, is studied experimentally and modeled. We show herein that thin films can be actuated using an external magnetic field applied…

Soft Condensed Matter · Physics 2019-12-17 M. Poty , F. Weyer , G. Grosjean , G. Lumay , N. Vandewalle

It is demonstrated here that growth stress has a substantial effect on the dielectric constant of zirconia thin films. The correct combination of parameters - phase, texture and stress - is shown to yield films with high dielectric constant…

The Casimir free energy and pressure of thin metal films deposited on metallic plates are considered using the Lifshitz theory and the Drude and plasma model approaches to the role of conduction electrons. The bound electrons are taken into…

Quantum Physics · Physics 2016-04-21 G. L. Klimchitskaya , V. M. Mostepanenko

At high dissipation levels, vortex motion in a superconducting film has been observed to become unstable at a certain critical vortex velocity v*. At substrate temperatures substantially below Tc, the observed behavior can be accounted for…

Superconductivity · Physics 2009-11-11 James M. Knight , Milind N. Kunchur

We propose an approach for investigation of interaction of thin material films with quantum electrodynamic fields. Using main principles of quantum electrodynamics (locality, gauge invariance, renormalizability) we construct a single model…

High Energy Physics - Theory · Physics 2007-05-23 V. N. Markov , Yu. M. Pis'mak

Recent advances in nanotechnology have created tremendous excitement across different disciplines but in order to fully control and manipulate nano-scale objects, we must understand the forces at work at the nano-scale, which can be very…

Mesoscale and Nanoscale Physics · Physics 2018-01-24 Kun Ding , Han Hu , T. C. Leung , C. T. Chan

Room temperature simulations of graphene have been performed as a function of the mechanical tension of the layer. Finite-size effects are accurately reproduced by an acoustic dispersion law for the out-of-plane vibrations that, in the…

Materials Science · Physics 2017-03-01 R. Ramirez , C. P. Herrero

A detailed analysis of damping and noise due to a {\it sd}-interaction in a thin ferromagnetic film sandwiched between two large normal metal layers is carried out. The magnetization is shown to obey in general a non-local equation of…

Materials Science · Physics 2009-11-10 A. Rebei , M. Simionato