Journal•ISSN: 0031-8949

# Physica Scripta

IOP Publishing

About: Physica Scripta is an academic journal published by IOP Publishing. The journal publishes majorly in the area(s): Physics & Plasma. It has an ISSN identifier of 0031-8949. Over the lifetime, 22614 publications have been published receiving 255504 citations. The journal is also known as: International journal for experimental and theoretical physics.

Topics: Physics, Plasma, Materials science, Electron, Ion

##### Papers published on a yearly basis

##### Papers

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TL;DR: In this article, the authors derived the general solution of a wave equation describing the dynamics of two-layer viscoelastic polymer materials of arbitrary thickness deposited on solid (quartz) surfaces in a fluid environment.

Abstract: We have derived the general solution of a wave equation describing the dynamics of two-layer viscoelastic polymer materials of arbitrary thickness deposited on solid (quartz) surfaces in a fluid environment. Within the Voight model of viscoelastic element, we calculate the acoustic response of the system to an applied shear stress, i.e. we find the shift of the quartz generator resonance frequency and of the dissipation factor, and show that it strongly depends on the viscous loading of the adsorbed layers and on the shear storage and loss moduli of the overlayers. These results can readily be applied to quartz crystal acoustical measurements of the viscoelasticity of polymers which conserve their shape under the shear deformations and do not flow, and layered structures such as protein films adsorbed from solution onto the surface of self-assembled monolayers.

1,455 citations

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TL;DR: In this paper, the existence of a low-frequency electrostatic wave in an unmagnetized collisionless dusty plasma is pointed out, and the wave can be used to generate a new low frequency electric current.

Abstract: The existence of a new low-frequency electrostatic wave in an unmagnetized collisionless dusty plasma is pointed out.

1,139 citations

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TL;DR: Sam's Interface for XAS analysis Package (SIXPack) as discussed by the authors is a graphical user interface that allows users simple manipulation and analysis of data, which is particularly useful for analysis of geochemical and environmental systems.

Abstract: SIXPack (Sam's Interface for XAS analysis Package), a graphical user interface that allows users simple manipulation and analysis of data, is presented. The modules of SIXPack allow users to: (1) load, calibrate, and average raw data files; (2) perform background subtractions; (3) perform principal component analysis and target transforms; (4) perform least squares fitting of data to standards and functions; (5) perform EXAFS fitting to FEFF phase and amplitude files; (6) create single scattering FEFF phase and amplitude files using a periodic table interface. Novel features of the program allow for the fitted correction of XANES spectra due to self-absorption effects in unknown matrices, which is particularly useful for analysis of geochemical and environmental systems. The core of the XAS analysis routine uses IFEFFIT. SIXPack is developed in Python, is installable across many operating systems and platforms, and is freely available with an Open Source license.

1,035 citations

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TL;DR: In this article, a systemized version of the tanh method is used to solve particular evolution and wave equations, where the boundary conditions are implemented in this expansion, and the associated velocity can then be determined a priori, provided the solution vanishes at infinity.

Abstract: A systemized version of the tanh method is used to solve particular evolution and wave equations. If one deals with conservative systems, one seeks travelling wave solutions in the form of a finite series in tanh. If present, boundary conditions are implemented in this expansion. The associated velocity can then be determined a priori, provided the solution vanishes at infinity. Hence, exact closed form solutions can be obtained easily in various cases.

964 citations

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TL;DR: A very brief presentation of how lattice gas hydrodynamics is made and includes key references.

Abstract: A very brief presentation of how lattice gas hydrodynamics is made. It includes key references.

852 citations