Zeitschrift für Physik D Atoms, Molecules and Clusters
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Heavy ion induced multiple ionization in gold
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 28 - Trang 123-125 - 1993
TheL X-ray spectra of Au in collision with carbon and oxygen projectiles in the
energy range of 0.25 to 0.75 MeV amu−1 have been measured. From the energy
shifts and the yield-ratio shifts of theL 1,L α,L η andL γ lines relative to
those for the 3.5 MeV proton bombardment, the experimental values for the
multiple ionisation probabilitiesp M4,5 andp N4 as a function of the projectile
energy have be...
A further study on the discretisation of the Griffin-Hill-Wheeler equation
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 3 - Trang 339-344 - 1986
It is shown that the discretisation of the Griffin-Hill-Wheeler equation is
independent of the character of the weight functionf(α). The possibility of
obtaining accurate weight functions through discretisation is discussed and the
methods proposed are compared with an existing variational technique. The
applications include the classical variational problem of representing hydrogen
orbitals in te...
STM observation of Au fine-particles on graphite
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 19 - Trang 333-335 - 1991
Gold particles deposited on graphite in vacuum have been studied by STM
observation in air. Liquid-like coalescence between small gold-particles has
been observed near room temperature. Preparation of small particles in vacuum is
discussed. Small particles are formed in nucleation process if the degree of
coalescence of particles is reduced. Over 400 Au particles of 5 nm in diameters
with a narrow...
Study of potential barriers in Σ states of Li* (3P, 3D)-rare gas collision molecules by means of laser excitation spectroscopy
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 36 - Trang 325-337 - 1996
Excitation spectra of the transitions 2P ΛA → 3D Λ and 2P Λ → 3PΛ in LiHe and
LiNe collision molecules have been measured in the spectral range 15800–17600
cm−1 about the atomic Li2P → 3D line by means of two-step laser excitation.
Rainbow satellite bands are observed and have been identified as due to maxima
in the difference potentials 2PΣ-3DΣ, 2PΠ-3DΣ and 2PΛ-3PΣ, that are turn related
to poten...
Time and spectrally resolved fluorescence of Cl*2 and ArCl* in Cl2 doped Ar Under state selective pulsed photoexcitation with synchrotron radiation
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 4 - Trang 73-87 - 1986
Synchrotron Radiation is used to selectively excite chlorine and Cl2 doped argon
in the VUV region. Stationary fluorescence and excitation spectra of the 11Σ + ,
21Σ + and 23Πg Cl 2 * states and of the ArCl*(B−X) transition are obtained. The
excitation threshold of ArCl*(B) in Ar/Cl2 system is found to be 1,285±5 Å and
that of ArCl(C) at ∼1,260 Å. The formation of ArCl* and Cl*2(23Πg) is discussed...
A novel desorption mechanism of (AgnIn−1)+ cluster ions
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 26 - Trang 181-183 - 1993
Silver iodide clusters have been generated by inert gas condensation technique,
ionized via electron impact, and mass analyzed in a reflectron equipped
time-of-flight mass spectrometer. The mass spectra are dominated by cluster ions
of the composition (AgnIn−1)+. Additional kinetic energy analysis is applied to
detect metastable decay of the cluster ions for n up to 30. In contrast to
alkali halid...
Rydberg clusters
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 37 - Trang 85-88 - 2014
An alternative class of Rydberg systems is presented consisting of two
oppositely charged atomic clusters in a bound state with high angular momentum
and large binding energy (“Rydberg clusters”). The basic structural properties,
the stability and possible formation processes of these states are discussed.
Quantal close-coupling calculation of the cross sections for the j 1 m 1 → j 2 m 2 transitions in the 4p 2P and 3d 2D excited states of Ca+ induced by collisions with helium
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 41 - Trang 87-94 - 2014
Cross sections for the j 1 m 1 → j 2 m 2 transitions in the resonance 4p 2P and
metastable 3d 2D states of the singly charged calcium ion induced by collisions
with the ground-state He atom have been calculated using the quantal
close-coupling method. The calculations are based on the earlier obtained Ca+-He
pseudopotential SCF potential energy curves. The calculated cross sections are
discussed i...
An embedded atom method study of the equilibrium shapes of small platinum and palladium clusters
Zeitschrift für Physik D Atoms, Molecules and Clusters - Tập 26 - Trang 310-312 - 1993
The embedded atom method (EAM) was used to determine the equilibrium shapes of
small platinum and palladium clusters (N=5–60 atoms). The stability of various
polyhedral symmetries was performed at 0K. A search for the presence of any
other lower energy structures was also carried out. Pt clusters reconstructed to
lower energy clusters even at the magic numbers. Pd also reconstructed to lower
energ...
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