Sputter yields of rough surfaces: Importance of the mean surface inclination angle from nano- to microscopic rough regimes

Cupak, C.; Szabo, Paul Stefan; Biber, Herbert; Stadlmayr, R.; Grave, C.; Fellinger, Martina; Brötzner, Johannes; Wilhelm, R.; Möller, W.; Mutzke, A.; Moro, Marcos V.; Aumayr, F.

doi:10.1016/j.apsusc.2021.151204

Cited by 43 publications

(27 citation statements)

References 49 publications

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“…The OKSANA (Shulga 2018) code addresses the same limitations of TRIM as SDTrimSP does. Cupak et al (2021) found that the governing parameter for description of the sputtering behavior is the mean value of the distribution of surface inclination angles, rather than the commonly used root mean square roughness. This finding is the basis for an analytical treatment of the effect of surface roughness on the sputter yield (Szabo et al 2022).…”

Section: The Total Sputter Yieldmentioning

confidence: 99%

Particles and Photons as Drivers for Particle Release from the Surfaces of the Moon and Mercury

et al. 2022

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The Moon and Mercury are airless bodies, thus they are directly exposed to the ambient plasma (ions and electrons), to photons mostly from the Sun from infrared range all the way to X-rays, and to meteoroid fluxes. Direct exposure to these exogenic sources has important consequences for the formation and evolution of planetary surfaces, including altering their chemical makeup and optical properties, and generating neutral gas exosphere. The formation of a thin atmosphere, more specifically a surface bound exosphere, the relevant physical processes for the particle release, particle loss, and the drivers behind these processes are discussed in this review.

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Section: The Total Sputter Yieldmentioning

confidence: 99%

Particles and Photons as Drivers for Particle Release from the Surfaces of the Moon and Mercury

et al. 2022

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“…In total, the sample received a fluence of 7.4 ×10 19 Ar•m -2 at 1000 eV and 1.1 ×10 20 Ar•m -2 at 2000 eV. This low-fluence approach proved to be very robust for measuring static sputtering yields of W samples 42 . With information from both the mass loss and the ion flux, incidence-angle-dependent sputtering yields were calculated.…”

Section: B Quartz Crystal Microbalance Experimentsmentioning

confidence: 99%

“…Numerical simulations based on the binary collision approximation were performed by means of the ray-tracing code SPRAY 42 . SPRAY uses a repository data set containing sputtering yields, ion reflection coefficients and secondary particle trajectories (i.e., for sputtered target atoms and reflected ions) for a given ion-target combination.…”

Section: Spray Simulationsmentioning

confidence: 99%

“…An alternative approach to circumvent this limitation is the use of a very sensitive quartz crystal microbalance (QCM) [38][39][40][41] , where even very small mass losses can be determined in-situ. This technique was found to be very useful in situations where only low ion fluences are acceptable in sputtering yield experiments, to prevent dynamic changes of the surface morphology on rough samples 42 .…”

Section: Introductionmentioning

confidence: 99%

“…While these codes already allow to simulate topographies extending beyond 100 nm lateral size, consideration of larger surface inputs is still limited by computational resources. To liberate these constraints, ray-tracing approaches were developed, which enable computationally efficient extrapolation of BCA-based data to simulate even larger morphological structures 42,56,57 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative study regarding the sputtering yield of nanocolumnar tungsten surfaces under Ar+ irradiation

Lopez-Cazalilla

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et al. 2022

Phys. Rev. Materials

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Future Directions for the Investigation of Surface-Bounded Exospheres in the Inner Solar System

Milillo,

Sarantos,

Grava

et al. 2023

Space Sci Rev

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Surface-bounded exospheres result from complex interactions between the planetary environment and the rocky body’s surface. Different drivers including photons, ion, electrons, and the meteoroid populations impacting the surfaces of different bodies must be considered when investigating the generation of such an exosphere. Exospheric observations of different kinds of species, i.e., volatiles or refractories, alkali metals, or water group species, provide clues to the processes at work, to the drivers, to the surface properties, and to the release efficiencies. This information allows the investigation on how the bodies evolved and will evolve; moreover, it allows us to infer which processes are dominating in different environments. In this review we focus on unanswered questions and measurements needed to gain insights into surface release processes, drivers, and exosphere characterizations. Future opportunities offered by upcoming space missions, ground-based observations, and new directions for modelling are also discussed.

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Sputter yields of rough surfaces: Importance of the mean surface inclination angle from nano- to microscopic rough regimes

Cited by 43 publications

References 49 publications

Particles and Photons as Drivers for Particle Release from the Surfaces of the Moon and Mercury

Particles and Photons as Drivers for Particle Release from the Surfaces of the Moon and Mercury

Comparative study regarding the sputtering yield of nanocolumnar tungsten surfaces under Ar+ irradiation

Future Directions for the Investigation of Surface-Bounded Exospheres in the Inner Solar System

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