Results 231 to 240 of about 949,044 (283)

Free atoms and the simplest atomic crystals

Physics Reports, 1996
Abstract The simplest atomic crystals, i.e. rare-gas solids, are qualitatively different from other dielectrics by a high atomic ionization potential which inhibits the formation of covalent bindings and provides a simple electronic structure: an excited weakly bound electron moves in the free space between inert atoms placed in the lattice sites ...
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Electron Binding Energies in Free Atoms*

Journal of the Optical Society of America, 1970
Binding energies (ionization energies) of all subshells are given for free atoms up to Z = 108. X-ray data for solids have been combined with spectroscopic data and work functions, and have been smoothed, interpolated, and extrapolated.
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Auger Line Shapes of Free Atoms

Physical Review Letters, 1989
Quantitative calculations of Auger line shapes of free atoms after particle-impact ionization are presented. It is shown that the line shapes deviate from Lorentzians for all impact energies, due to long-range continuum interactions between the Auger electron and unobserved collision fragments. In particular, even at asymptotically high impact energies,
, Sandner, , Völkel
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Contractive states of a free atom

Physical Review A, 1994
A position-measurement scheme is discussed which prepares an atom in a contractive state. Two operating regimes are analyzed. In the first, the quadratic form of the interaction potential is responsible for the focusing. In the second regime the potential varies approximately linearly with position, and the focusing results from the measurement itself.
, Storey, , Sleator, , Collett, , Walls
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Arbitrary Dipole Potentials for Ultracold Atoms: Free-Space Atom Chips

Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, 2011
A phase-contrast approach to generate arbitrary, low-noise dipole potentials is described. These potentials are dynamic and can be exploited for matter simulators and investigations from novel quantum behavior in 1–3 dimensions to atomtronics.
J. Lee, W. T. Hill
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“Long-life” atom-free radical: Generation and reactions of bromine atom-free radical

Collection of Czechoslovak Chemical Communications, 2010
In order to study the damaging or beneficial properties of bromine atom-free radical, reaction of the free radical (Br•) with some biologically important compounds were investigated. Br• was generated through electrochemical oxidation of bromide ion (Br–). First the reactivity of Br• atom-free radical vis a vis its dimerization to form Br2, was studied
Mahboob Mohammad   +2 more
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