On the formation of nanostructures by inducing confined plasma expansion

Moslem, W. M.; El-Said, A.S.; Morsi, S A; Sabry, R.; Yahia, M. E.; El‐Labany, S. K.; Bahlouli, H.

doi:10.1016/j.rinp.2019.102696

Cited by 6 publications

(3 citation statements)

References 26 publications

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“…The quasi-neutrality condition (4) as a plasma approximation is well-known in studies related to plasma at short wavenumber or in situations dealing systems having very small Debye length, which is fulfilled in most of the plasma experiments [21]. On the other hand, we calculated the Debye length of the present plasma to be about 10 −8 cm, while the plasma-scale in the experiment is the nano-hillock width ≈10 −6 cm [17]. Therefore, it is obvious that plasma-scale ?…”

Section: Theoretical Modelmentioning

confidence: 65%

“…The plasma expansion approach was used to model the formation of these nanostructures in different materials [12,[14][15][16]. Recently, Moslem et al [17] studied the creation of surface nanostructures in lithium niobate single crystals using a full hydrodynamic fluid equations of both the moving ions and the associated electrons. This means that both the inertia of electrons and ions are taken into account.…”

Section: Introductionmentioning

confidence: 99%

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Creation of surface nanometer-scale plasma region by irradiation with slow highly charged ions

et al. 2020

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Slow highly charged ions (HCIs) were used to create a plasma region of nanometer scale on the surface of different materials. The creation of the plasma in a localized region is accompanied by the formation of surface nanostructures. The plasma expansion approach is used to explain the creation mechanism of HCI-induced nanostructures in lithium niobate single crystals, considering the Maxwellian and non-Maxwellian electron distributions. The numerical solutions of the applied hydrodynamic equations show that the profile of the early stage expanded plasma is independent of the ratio of ion-to-electron temperatures. However, an increase in the temperature ratio leads to a wider expansion domain. In addition, the effect of material constituents ions are studied in terms of the modifications induced in the plasma-expanded region.

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Section: Theoretical Modelmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Creation of surface nanometer-scale plasma region by irradiation with slow highly charged ions

et al. 2020

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“…This mechanism suggests that the plasma is generated because of the strong ion-induced agitation in a nanometer-sized area close to the surface. Different theoretical approaches in plasma physics were used to explain the formation mechanisms of the nanostructures, such as plasma expansion and wake field approaches [2,6].…”

Section: Introductionmentioning

confidence: 99%

Evolution of nanohillocks by fullerene ion-induced localized plasma

Altuijri,

El Maati,

Ahmad

et al. 2023

Front. Phys.

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Surface nanostructures etch without chemicals; owing to this, their development is a crucial technical process. Surface nanohillocks may be created by irradiating yttrium iron garnet (YIG) with 30-MeV C60 cluster ions. The nanohillock creation mechanism is disputed. In this study, we propose that the formation mechanism is a plasma collective effect of charged particles that depends on localized rogue waves. Rogue waves will explain YIG surface nanohillock creation using a traditional hydrodynamic plasma model. Analytically solving hydrodynamic ion fluid equations and Maxwellian electron distributions yields a non-linear Schrödinger equation. Solving the latter gives us plausible rogue wave domains. Rogue waves concentrate charged ions from the surroundings into a small, confined zone, generating surface nanohillocks. The relevance of different plasma parameters is highlighted in the rogue wave profile.

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