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Nonlinear phenomenon in nanostructures creation by fast cluster ions

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The development of accelerators technology offers a new window for the creation of surface nanostructures in an efficient and accurate way. The use of 30 MeV C60 cluster ions enables the creation of nano-hillocks of size larger than the ones produced by GeV monoatomic ions. The physical mechanism underlying the realization of such nanostructures is elucidated using a plasma expansion approach. Numerical analysis showed that increasing the ionic temperature (number density) ratios would lead to decrease (increase) the nano-hillocks height.

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Compelling Scientific Advances in Space and Astrophysical Plasmas

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http://aip-info.org/1XPS-213Q7-E2C9OWFEDE/cr.aspx

Space and Astrophysical Plasmas

“This short compendium of papers on space and astrophysical plasmas published in Physics of Plasmas during 2012 and 2013 provides a broad range of examples of compelling scientific advances made in this important subfield during the past several years. The selection of papers included here covers diverse topics ranging from magnetic reconnection, to kinetic effects in accretion disc plasmas, to freak waves in white dwarfs and magnetars, to identification of potential mechanism for breaks in the cosmic ray spectrum, to dust-driven currents in the magnetosphere of Saturn, to mention a few examples.”

-Ronald C. Davidson, Editor-in-Chief, Physics of Plasmas

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Scientific Research

  • Linear and Nonlinear Waves Propagating in Plasmas

    Nonlinear excitations: solitons, double layers (shocks), blowup/explosive, Rogue Waves, vortices, modulated envelope wave packets, instabilities, ponderomotive coupling effects. Electrostatic and electromagnetic excitations in: pair-ion plasma, electron-positron-ion...