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We consider a mixture of one neutral and two oppositely charged types of molecules confined to a surface. Using analytical techniques and molecular dynamics simulations, we construct the phase diagram of the system and exhibit the…

Soft Condensed Matter · Physics 2009-11-11 Sharon M. Loverde , Francisco Solis , Monica Olvera de la Cruz

The far side of the Moon, shielded from terrestrial radio frequency interference and beyond the influence of Earth's ionosphere, should offer a uniquely quiet environment for radio astronomy and cosmological experiments. The radio sky below…

Instrumentation and Methods for Astrophysics · Physics 2026-02-26 Kaja M. Rotermund , Aritoki Suzuki , Stuart D. Bale , Anže Slosar

The adsorption of highly \textit{oppositely} charged flexible polyelectrolytes (PEs) on a charged planar substrate is investigated by means of Monte Carlo (MC) simulations. We study in detail the equilibrium structure of the first few PE…

Soft Condensed Matter · Physics 2007-05-23 Rene Messina

We report the observation in the direct space of the transport of a few thousand charges submitted to a tunable electric field along the surface of a silicon oxide layer. Charges are both deposited and observed using the same Electrostatic…

Condensed Matter · Physics 2007-05-23 J. S. Lambert , G. De Loubens , C. Guthmann , M. Saint-Jean , T. Melin

Within the RoadMap project we investigated the microphysical aspects of particle collisions during saltation on the Martian surface in laboratory experiments. Following the size distribution of ejected particles, their aerodynamic…

Earth and Planetary Astrophysics · Physics 2024-09-17 T. Becker , F. C. Onyeagusi , J. Teiser , T. Jardiel , M. Peiteado , O. Munoz , J. Martikainen , J. C. Gomez Martin , J. Merrison , G. Wurm

We use a laboratory facility to study the sputtering properties of centimeter-thick porous water ice subjected to the bombardment of ions and electrons to better understand the formation of exospheres of the icy moons of Jupiter. Our ice…

Instrumentation and Methods for Astrophysics · Physics 2017-02-12 A. Galli , A. Vorburger , A. Pommerol , P. Wurz , B. Jost , O. Poch , Y. Brouet , M. Tulej , N. Thomas

This observational study demonstrates that the magnitude and location of energization of electrons in the Martian magnetosheath is more complex than previous studies suggest. Electrons in Mars's magnetosheath originate in the solar wind and…

Space Physics · Physics 2021-05-05 K. Horaites , L. Andersson , S. J. Schwartz , S. Xu , D. L. Mitchell , C. Mazelle , J. Halekas , J. Gruesbeck

Periodic structures are a type of metamaterial in which the physical properties depend not only on the details of the unit cell but also on how unit cells are arranged and interact with each other. In conventional engineering structures,…

Applied Physics · Physics 2022-05-27 Sudesh Pathak , Gagan Dangi , Farhad Farzbod

It is shown that the appearance of lunar horizon glow and streamers observed above the lunar terminator described by the dynamic fountain mode byl Stubbs et al. (2006) requires a value of dust particles charge several orders exceed what…

Earth and Planetary Astrophysics · Physics 2014-01-23 E. V. Rosenfeld , A. V. Zakharov

Moir\'e superlattices formed by vertically stacking van der Waals layers host a rich variety of correlated electronic phases and function as novel photonic materials. The moir\'e potential of the superlattice, however, is fixed by the…

The solar wind wake behind the moon is studied with 1D electrostatic particle-in-cell (PIC) simulations using a physical ion to electron mass ratio (unlike prior investigations); the simulations also apply more generally to supersonic flow…

Plasma Physics · Physics 2015-03-27 Christian Bernt Haakonsen , Ian H. Hutchinson , Chuteng Zhou

In the companion paper ("Erosion rate of lunar soil under a landing rocket, part 1: identifying the rate-limiting physics", this issue) an equation was developed for the rate that lunar soil erodes under the exhaust of a landing rocket.…

Earth and Planetary Astrophysics · Physics 2024-03-28 Philip Metzger

Electron sheaths form near the surface of objects biased more positive than the plasma potential, such as in the electron saturation region of a Langmuir probe trace. Generally, the formation of electron sheaths requires that the…

The physical state of the lunar soil in the permanently shadowed craters of the moon is inferred from experimental investigation. The permanently shadowed craters do not undergo the same thermal cycling experienced by other parts of the…

Earth and Planetary Astrophysics · Physics 2023-06-01 Jacob N. Gamsky , Philip T. Metzger

The lunar surface is extremely harsh and current mineral processing and metal extraction technologies are not adequately equipped to address this environment. In this paper we review the metals available for extraction and conditions at the…

The properties of rechargeable lithium-ion batteries are determined by the electrochemical and kinetic properties of their constituent materials as well as by their underlying microstructure. Microstructural design can be leveraged to…

Materials Science · Physics 2022-03-11 Giovanna Bucci , Tushar Swamy , W. Craig Carter , Morad Behandish

We investigate the phenomenon of multilayer formation via layer-by-layer deposition of alternating charge polyelectrolytes. Using mean-field theory, we find that a strong short-range attraction between the two types of polymer chains is…

Soft Condensed Matter · Physics 2012-01-31 Adi Shafir , David Andelman

Phase separation in charged systems may involve the replacement of critical points by microphase separated states, or charge-density-wave states. A density functional theory for highly charged colloids at low ionic strength is developed to…

Soft Condensed Matter · Physics 2007-05-23 Patrick B. Warren

Lunar crustal magnetic anomalies (LCMA) are sub-ion-gyroradius structures that have been shown to stand off the solar wind (SW) plasma from the Moon's surface, forming shock-like discontinuities and reflecting incident SW protons. In this…

Space Physics · Physics 2024-02-06 Adam Stanier , Li-Jen Chen , Ari Le , Jasper Halekas , Rhyan Sawyer

The applicability of the linear theory of elasticity to the Moon has been studied. As a criterion was taken the smallness of the strain tensor. The elastic moduli are obtained from the data of the project "Apollo". The pressure was…

Geophysics · Physics 2017-06-29 Vladimir Pavlov