Contributions to Plasma Physics最新文献

{"title":"Effects of Dust Size Distribution on Shock Waves in Dusty Plasma With Nonextensive Electron","authors":"Bo Liu,&nbsp;Heng Zhang,&nbsp;Wenshan Duan","doi":"10.1002/ctpp.70008","DOIUrl":"https://doi.org/10.1002/ctpp.70008","url":null,"abstract":"<div>\u0000 \u0000 <p>This study delves into the effects of dust size distribution on the properties of shock waves in a dusty plasma, where electrons follow a nonextensive distribution. Employing the reductive perturbation method, the research explores the influence of dust size distribution, modeled by polynomial and power law distributions, on shock wave characteristics such as amplitude, width, and phase velocity. The results reveal that the phase velocity and width of a shock wave considering the dust size distribution are larger than those of the dusty plasma with the averaged dust size. However, the amplitude of a shock wave considering the dust size distribution is smaller than that of the dusty plasma with the averaged dust size. These findings are pivotal for grasping the behavior of shock waves in diverse astrophysical and space plasma contexts where dust particles present a multitude of sizes.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 6","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Linear Properties of Dust-Acoustic Waves in Viscous and Collisional Dusty Plasmas","authors":"Md. Mehedi Hasan,&nbsp;Sharmin Sultana,&nbsp;A. A. Mamun","doi":"10.1002/ctpp.70007","DOIUrl":"https://doi.org/10.1002/ctpp.70007","url":null,"abstract":"<div>\u0000 \u0000 <p>Linear properties of acoustic modes associated with dust-acoustic waves (DAWs) has been examined in a dusty plasma medium containing inertial negatively charged dust species, non-inertial ions following Maxwellian distribution and non-inertial electrons following non-extensive <i>q</i>-distribution. The dust kinematic viscosity and also the dissipation due to the dust-neutral collision have been taken into consideration. The thermal effect of dust species is also taken into account. The linear dispersion relation (LDR) is derived by adopting the normal mode analysis and the linear properties of DAWs is studied for different plasma contexts. It is shown that the propagation zone for DAWs is significantly influenced by the dust-neutral collision and also by the viscosity of dust species. The implications of our results are discussed elaborately in connection with Saturn's rings, Earth's noctilucent clouds (NLC) and DC discharge plasmas.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 6","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144574009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Generation of Scattered Ion-Cyclotron Wave and Ion Acoustic Wave by Parametric Instability of Electromagnetic Ion-Cyclotron Wave in a Dusty Plasma","authors":"Twinkle Pahuja,&nbsp; Supreet,&nbsp;Jyotsna Sharma","doi":"10.1002/ctpp.70005","DOIUrl":"https://doi.org/10.1002/ctpp.70005","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;This manuscript provides the theoretical explanation of the nonlinear scattering of an EMIC into an IAW &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mtext&gt;and&lt;/mtext&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ mathrm{and} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; a scattered ion-cyclotron wave (SICW) in a dusty plasma using fluid theory. The low-frequency nonlinearity arises through the parallel ponderomotive force on ions and the high-frequency nonlinearity arises through &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mtext&gt;the&lt;/mtext&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ mathrm{the} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; nonlinear current density of ions. For the linked modes, a nonlinear dispersion relation is obtained. A formula for the SICW growth rate has been derived. The estimation of the turbulence growth rate takes into account for the typical parameters of dusty plasma. It is detected that an increased growth rate can be seen with a rise in the pump wave amplitude and the number density &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mi&gt;d&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;mfenced&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;cm&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;−&lt;/mo&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mfenced&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ {n}^{0d}left({mathrm{cm}}^{-3}right) $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; of dust grains. However, a decline in the growth rate has been reported with growing relative density &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;d&lt;/mi&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mfrac&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mi&gt;i&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;msup&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mi&gt;e&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mfrac&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ d=frac{n^{0i}}{n^{0e}} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mtext&gt;of&lt;/mtext&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$$ mathrm{of} $$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; dust grains, magnetic field, and the dust grain's size. Th","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 6","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrical Conductivities and Low Frequency Opacities in the Warm Dense Matter Regime","authors":"Mikael Tacu,&nbsp;Jean-Christophe Pain,&nbsp;Matthias Pautard,&nbsp;Christophe Blancard","doi":"10.1002/ctpp.70004","DOIUrl":"https://doi.org/10.1002/ctpp.70004","url":null,"abstract":"<p>In this article, we examine different approaches for calculating low frequency opacities in the warm dense matter regime. The relevance of the average-atom approximation and of different models for calculating opacities, such as the Ziman or Ziman–Evans models is discussed and the results compared to ab initio simulations. We begin by recalling the derivation of the Ziman–Evans resistivity from Kubo's linear response theory, using the local approximation to the solutions of the Lippmann–Schwinger equation. With the help of this approximation, we explicitly introduce an ionic structure factor into the Ziman formula, without resorting to the Born approximation. Both approaches involve the calculation of scattering phase shifts, which we integrate from Calogero equation with an adaptive step numerical scheme based on a Runge–Kutta–Merson solver. We show that if the atomic number <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>Z</mi>\u0000 </mrow>\u0000 <annotation>$$ Z $$</annotation>\u0000 </semantics></math> is not too large, integrating the phase shifts in this way is more time-efficient than using a classical Numerov-type scheme to solve the radial Schrödinger equation. Various approximations are explored for phase shifts to further improve computation time. For the Born approximation, we show that using Born phase shifts directly in the scattering cross-section gives more accurate results than with the integral formula based on the Fourier transform of the electron-ion potential. We also compare an analytical formula based on a Yukawa fit of the electron-ion potential to a numerical integration. The average-atom results are compared with DFT-based molecular dynamics simulations for aluminum in the dilute regime and for copper, aluminum and gold at solid density and different temperatures.</p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 6","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Contrib. Plasma Phys. 03/2025","authors":"","doi":"10.1002/ctpp.202590005","DOIUrl":"https://doi.org/10.1002/ctpp.202590005","url":null,"abstract":"<p>Diagram of beam distribution of the magnetic trap at 50 ns with different beam incidence velocities. Green points represent protons, red points represent electrons and blue lines represent magnetic induction lines. Part of Fig. 6 of the paper by Fang-Ping Wang et al. https://doi.org/10.1002/ctpp.202400040\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: Contrib. Plasma Phys. 03/2025","authors":"","doi":"10.1002/ctpp.202590006","DOIUrl":"https://doi.org/10.1002/ctpp.202590006","url":null,"abstract":"","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prototyping of Si and III–V Compounds by Plasma Chemistry Using Dry Film Photoresist Mask","authors":"Etienne Herth,&nbsp;David Bouville,&nbsp;Samson Edmond","doi":"10.1002/ctpp.202400050","DOIUrl":"https://doi.org/10.1002/ctpp.202400050","url":null,"abstract":"<div>\u0000 \u0000 <p>Fast and reliable plasma chemistry plays a crucial role in the fabrication of micro- and nanoscale structures in numerous applications. In this work, we demonstrated that fast and optimal etch chemistry using an inductively coupled plasma (ICP) system in combination with a simple and cost-effective dry film photoresist (DFR) as a mask transfer. The results show that the proposed DFR, which simultaneously removes the edge bead and air bubbles, can be successfully used in chlorinated and fluorinated chemistries, resulting in fast etching rates and good selectivity from 5:1 to 16:1 for GaAs and from 30:1 to 150:1 for silicon substrates. This solution offers the promise of drastically cutting down microfabrication time and minimizing contamination. It could pave the way for a novel, rapid manufacturing process that is applicable in various fields, regardless of the size or shape of the substrate.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Instability of DA Mode in Ionospheric Dusty Plasmas","authors":"Md. Khairul Islam,&nbsp;Md. Sirajum Munir,&nbsp;Md. Afzal Hossain Talukder,&nbsp;M. A. Malek,&nbsp;Md. Salahuddin","doi":"10.1002/ctpp.202400123","DOIUrl":"https://doi.org/10.1002/ctpp.202400123","url":null,"abstract":"<div>\u0000 \u0000 <p>Irradiation effect on the different plasma modes in various dusty plasma conditions was studied theoretically. We revisit our investigation on the instability of the electrostatic dust acoustic (DA) mode elaborately in the case of ionospheric dusty plasmas. In this investigation, it is found that the growth rate of DA mode increases two orders more due to the photoelectric effect than that of the streaming effect. A detailed description of the dust charge fluctuation model in the irradiated dusty plasmas, the derivation of the DA mode, and discussions on the numerical analysis of the obtained results make the paper easy to understand. The present theory should be applied specially in understanding the formation of radar echoes in the presence of solar radiation.</p>\u0000 </div>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 5","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information: Contrib. Plasma Phys. 02/2025","authors":"","doi":"10.1002/ctpp.202590004","DOIUrl":"https://doi.org/10.1002/ctpp.202590004","url":null,"abstract":"","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Contrib. Plasma Phys. 02/2025","authors":"","doi":"10.1002/ctpp.202590003","DOIUrl":"https://doi.org/10.1002/ctpp.202590003","url":null,"abstract":"<p>Normalized vector potential (<i>a_y</i>), the produced wakefield (<i>E_x</i>), the momentum (<i>p_x</i>) and the electron density (<i>n_x</i>) for hydrogen atoms density/pre-ionized plasma density <i>n</i>₀ = 0.01<i>n_cr</i> at time 810 fs for the field-ionized plasma (panel a) and the pre-ionized plasma (panel b) and normalized vector potential variation <i>a</i>₀ = 1 (in panels a1 and b1), <i>a</i>₀ = 2 (in panels a2 and b2), and <i>a</i>₀ = 3 (in panels a3 and b3). Fig. 4 of the paper by Elnaz Khalilzadeh et al. https://doi.org/10.1002/ctpp.202400022\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10700,"journal":{"name":"Contributions to Plasma Physics","volume":"65 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.202590003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}