منابع مشابه
Plasma Crystals – Structure and Dynamics∗)
This overview describes the confinement and structure of two-dimensional plasma crystals. Phonons and Mach cones in monolayer systems can be used for diagnostic purposes. Three-dimensional plasma crystals are found as multilayer systems or as Yukawa balls. The differences between Coulomb and Yukawa balls are described by means of a simple model. Optical diagnostic methods for studying dynamical...
متن کاملStructure and dynamics of colliding plasma jets.
Monoenergetic-proton radiographs of laser-generated, high-Mach-number plasma jets colliding at various angles shed light on the structures and dynamics of these collisions. The observations compare favorably with results from 2D hydrodynamic simulations of multistream plasma jets, and also with results from an analytic treatment of electron flow and magnetic field advection. In collisions of tw...
متن کاملStructure and lattice dynamics of dipolarly disordered 2,3-dimethylanthracene crystals
2,3-dimethylanthracene (2,3-DMA, C16H14) crystallizes in a pseudocentrosymmetric triclinic lattice with two molecules per unit cell showing dipolar structural disorder of the acentric molecules. Using powder samples the amplitude weighted phonon density of states was measured by inelastic incoherent neutron scattering for different degrees of deuteration. The differences in the resulting spectr...
متن کاملMolecular dynamics simulations of structure and dynamics of organic molecular crystals.
A set of model compounds covering a range of polarity and flexibility have been simulated using GAFF, CHARMM22, OPLS and MM3 force fields to examine how well classical molecular dynamics simulations can reproduce structural and dynamic aspects of organic molecular crystals. Molecular structure, crystal structure and thermal motion, including molecular reorientations and internal rotations, foun...
متن کاملDynamics of Quantum Crystals
The phonon spectrum in a quantum crystal, where short-range correlations are important, is obtained by adapting the general relations between the onephonon response and the thermodynamic properties of an anharmonic crystal proposed by G6tze. Specifically, the one-phonon self-energy is obtained by requiring that the elastic constants obtained by the method of long waves equal those obtained as t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plasma and Fusion Research
سال: 2009
ISSN: 1880-6821
DOI: 10.1585/pfr.4.013