Abstract We present a systematic and quantitative investigation of the electrostatic anharmonicity in cylindrical Penning traps that is induced by presence radial holes for access to trap center. The expected distortion potential studied as function relative hole size, shape, arrangement, number.

As an energetic ion traverses a target material, it loses its energy through the processes of electronic loss (Se) and nuclear (Sn). Controlled swift heavy (SHI) irradiation on solid targets produces effects both these mechanisms, as consequence which modifications occur in structure, surface morphology, magnetic optical properties, apart from implantation ion-induced reactivity. A systematic investigation can be useful developing standard protocols for creating desired materials using...

We report the growth and characterization of uniform-sized nanoparticles cobalt on n-type silicon (100) substrates by swift heavy ion (SHI) irradiation. The Co thin films 25-nm thicknesses were grown e-beam evaporation irradiated with two different types ions, 45-MeV Li3+ 100-MeV O7+ ions fluences ranging from 1 × 1011 to 1013 ions/cm2. SHI irradiation, beam rastered over area film, resulted in restructuring film into a dense array nanostructures. Surface topography studied atomic force...

The effect of a transverse magnetic field on spatial electron temperature Te distribution along the line joining center capacitively driven rectangular discharge plates, operated at 13.56 MHz in push-pull configuration, has been presented. It is found that almost uniform low operating pressure (1 Pa). However, as background increases, tends to peak near plates. overall magnitude also increase throughout volume account increasing pressure. This experimental observation qualitatively depicted...

A non-invasive method of determining the collision frequency νm by measuring net plasma impendence in a magnetized, capacitive-coupled, radio-frequency (rf) discharge circuit is developed. The has been analytically expressed terms bulk reactance, wherein standard sheath models have used to estimate reactance offered due capacitive rf sheaths at plates. experimental observations suggest that un-magnetized case, remains constant over range current but steadily increases as background pressure...

Ion beam induced dewetting of thin metallic films has emerged as a promising way to grow nanoparticles in controlled manner. Metal tend dewet from non-reactive substrates upon heating, forming islands, due the high energies metal surfaces and interfaces. irradiation triggers self organized formation nanostructures, allows control over nanoparticle size distributions, since is initiated by highly localized (in space time) thermal spikes along ion track. From 25 nm cobalt grown e-beam...

In this paper we investigate nano-particle synthesis by irradiation of 25 nm tin films deposited on quartz substrate, with 45 MeV Li3+ ions and 100 O7+ ions. Ion fluences in the range 1×1011 to 1×1013 ions/cm2 are used. Morphological changes driven ion include substantial surface roughness, narrowing majority particle size from several hundred tens is observed. The characterized AFM, XRD RBS, which provide information about topography, crystallinity composition respectively, resulting...

Nonlinear optical materials (NLO) have been garnering attention due to their role in data storage, communication and laser technology. Organic crystals emerged as an extremely important class of NLO materials, since properties compare very well with traditional inorganic like KCl, LiNbO3, KDP (potassium dihydrogen phosphate), etc. They offer the additional advantage that they can be grown relatively inexpensively from solution close room temperature, unlike which are high temperature melts....

Plasma density in a magnetized, capacitive-coupled, radio frequency (RF) discharge has been determined using the electrical impedance characteristics of discharge. The effective between parallel plate electrodes treated as an equivalent electric circuit consisting resistive and reactive components, expressed terms high-frequency plasma conductivity. Hence model is used to connect externally measured RF voltage, current, their relative phase density. Additionally, triple Langmuir probe (TLP)...

Transparent single crystals of piperazine tartrate (PPZT) have been grown by the slow evaporation solution growth technique (SEST) at room temperature (RT) using doubled distilled water as a solvent. Powder X-ray diffraction confirms monoclinic crystal structure crystals, and lattice parameters determined. The strain developed in is calculated Williamson Hall relation. exhibit photo luminescence wavelength range 350-500 nm upon illumination Xe flash lamp, their time resolved decay behaviour...

The effects of 45 MeV Li3+ ions and 100 O7+ irradiation on magnetic properties nanoparticles 25 nm Cobalt thin films, synthesized by e-beam sputtering have been studied. Significant changes in the hysteresis loop are observed with different irradiating fluence, which may be attributed to formation cluster defects nano-crystalline samples due swift heavy ion (SHI) along distortion lattice parameter.

Triangular nano-scale pits (TNPs) of Si3N4 are fabricated by reactive nitrogen ion sputtering using low energy ions on the Si (553) surface at 500 °C. The electronic structure developing interface was monitored in-situ Auger Electron Spectroscopy (AES) while beam induced reaction analysed via X-Ray and Ultraviolet photoemission spectroscopy (XPS & UPS), Photoluminescence Raman spectroscopy. morphological development nanoscale pit structures observed Scanning Microscopy (SEM). formation...

The angular distribution of the correlated molecular fragments with respect to incoming beam direction for several dissociation channels multiply charged N2 molecule on collision Xe9+ was studied.

Abstract Simulation is essential to analyse radiation-induced effects because energetic ions have short transit times within materials (Ar of 1 keV and 100 0.29 picoseconds 29 femtoseconds respectively, through a 25 nm Al film). The binary collision approximation (BCA) extensively used in simulations study damage caused by due its computational efficiency. Stopping Range Ions Matter (SRIM), widely Monte Carlo software using BCA, provides accurate ion ranges consistent with experiments....