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In this work, a one-dimensional direct implicit particle-in-cell/Monte Carlo collision (PIC/MCC) code is used to study the capacitive discharge driven under 60 MHz rf power in the background gas of pure argon. The electron-induced secondary…

Plasma Physics · Physics 2023-12-06 Hao Wu , Ran An , Dong Zhong , Wei Jiang , Ya Zhang

Current-voltage characteristics in the insulator bordering superconductivity in disordered thin films exhibit current jumps of several orders of magnitude due to the development of a thermally bistable electronic state at very low…

Superconductivity · Physics 2011-09-21 O. Cohen , M. Ovadia , D. Shahar

We report in this paper simulation results and experimental measurements to characterize a micro-discharge generated in a single micro cavity device operating in helium. By spatially limiting the cathode surface area using a dielectric…

The self-diffusion coefficient of a granular gas in the homogeneous cooling state is analyzed near the shearing instability. Using mode-coupling theory, it is shown that the coefficient diverges logarithmically as the instability is…

Statistical Mechanics · Physics 2015-07-02 J. Javier Brey , Maria J. Ruiz-Montero

We present a study on the dependence of electric breakdown discharge properties on electrode geometry and the breakdown field in liquid argon near its boiling point. The measurements were performed with a spherical cathode and a planar…

Instrumentation and Detectors · Physics 2016-03-17 M. Auger , A. Blatter , A. Ereditato , D. Goeldi , S. Janos , I. Kreslo , M. Luethi , C. Rudolf von Rohr , T. Strauss , M. S. Weber

Short planar glow discharges coupled to a resistive layer exhibit a wealth of spontaneous spatio-temporal patterns. Several authors have suggested effective reaction-diffusion-models to explore similarities with other pattern forming…

Pattern Formation and Solitons · Physics 2009-11-10 Danijela D. Sijacic , Ute Ebert , Ismail Rafatov

We show that in disordered superconductors, at sufficiently low frequencies $\omega$, the coupling of TLS to external ac electric fields increases dramatically in the presence of a dc supercurrent. This giant enhancement manifests in all ac…

Superconductivity · Physics 2026-04-28 T. Liu , A. V. Andreev , B. Z. Spivak

The plasma parameters such as electron distribution function and electron density of three atmospheric-pressure transient discharges namely filamentary and homogeneous dielectric barrier discharges in air, and the spark discharge of argon…

Plasma Physics · Physics 2015-05-30 Sandra Keller , Priyadarshini Rajasekaran , Nikita Bibinov , Peter Awakowicz

An alternative explanation to the mechanism behind self-sustained oscillations of ions in direct current (DC) glow discharges is provided. Such description is distinguished from the one provided by the fluid models, where oscillations are…

Plasma Physics · Physics 2013-04-29 Sung Nae Cho

Interaction of an intense electron beam with a finite-length, inhomogeneous plasma is investigated numerically. The plasma density profile is maximal in the middle and decays towards the plasma edges. Two regimes of the two-stream…

Plasma Physics · Physics 2018-01-17 D. Sydorenko , I. D. Kaganovich , P. L. G. Ventzek , L. Chen

A detailed exposition is made of recent transport and 'quantum oscillation' results from HTSC systems covering the full range from overdoped to underdoped material. This now very extensive and high quality data set is interpreted here…

Superconductivity · Physics 2009-02-11 John A. Wilson

We consider diffusive lattice gases on a ring and analyze the stability of their density profiles conditionally to a current deviation. Depending on the current, one observes a phase transition between a regime where the density remains…

Statistical Mechanics · Physics 2009-11-11 T. Bodineau , B. Derrida

The appearence of long-range correlations near the Dirac point of a Dirac-like spinor model with random vector potential is studied. These correlations originate from a spontaneously broken symmetry and their corresponding Goldstone modes.…

Mesoscale and Nanoscale Physics · Physics 2008-09-04 K. Ziegler

We report on the first observation of white-eye pattern in an air dielectric barrier discharge. The patterned discharges undergo a development as following: random spots - quasihexagonal pattern - hexagonal pattern (type I) - hexagonal…

Plasma Physics · Physics 2011-03-04 Yafeng He , Lifang Dong , Weili Liu , Hongfang Wang , Zengchao Zhao , Weili Fan

Graphene as well as more generally Dirac solids constitute two dimensional materials where the electronic flow is ultra relativistic. When a Dirac solid is deposited on a different substrate surface with roughness, a local random potential…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Marios Mattheakis , G. P. Tsironis , Efthimios Kaxiras

Self-sustained time-dependent current oscillations under dc voltage bias have been observed in recent experiments on n-doped semiconductor superlattices with sequential resonant tunneling. The current oscillations are caused by the motion…

Condensed Matter · Physics 2009-10-28 O. M. Bulashenko , M. J. Garcia , L. L. Bonilla

Motivated by recent experimental findings for an organic superconductor, charge oscillations that emerge after a strong pulse of an oscillating electric field is applied are studied in electron systems in a superconducting phase on a…

Superconductivity · Physics 2018-11-06 Kenji Yonemitsu

The unbiased thermal diffusion of an overdamped Brownian particle in a square lattice potential is considered in the presence of an externally applied ac driving. The resulting diffusion matrix exhibits two orthogonal eigenvectors with…

Statistical Mechanics · Physics 2012-03-22 David Speer , Ralf Eichhorn , Peter Reimann

Two-dimensional capacitively coupled radio frequency discharge in methane is simulated by PIC-MCC method. The results were obtained in pressure range 50-300 mTorr and voltage range 40-180 V for discharge frequency 13.56 MHz. The electron…

Plasma Physics · Physics 2009-11-10 A L Alexandrov , I V Schweigert

We derive a general expression for the low-temperature current distribution in a two-dimensional electron gas, subjected to a perpendicular magnetic field and in a confining potential that varies slowly on the scale of the magnetic length…

Condensed Matter · Physics 2009-10-22 Michael R. Geller , Giovanni Vignale