Journal ArticleDOI
Preparation and photoionization potentials of molecules of sodium, potassium, and mixed atoms
TLDR
In this article, photoionization near the threshold allows identification of Naxx?16, Kxx?12, and NaxKyx+y?6, which is the longest contiguous series of any property as a function of cluster size.Abstract:
In supersonic nozzle beams of sodium, potassium, and Na/K molecular aggregates Mx have been investigated by several techniques based on mass spectrometry. By electron impact ionization with energy of 20 eV clusters with x≳4 are not observable. Photoionization near the threshold allows identification of Naxx?16, Kxx?12, and NaxKyx+y?6. Single photon ionization thresholds for Naxx?14 are given, this being the hitherto longest contiguous series of any property as a function of cluster size. For Kxx?8 and for 8 Na/K mixed clusters PI thresholds are similarly determined. Very accurate two photon photoionization thresholds for Na2 and K2 have been obtained. Theoretical models of metal clusters from recent publications are not able to adequately interpret the electronic properties of these particles as reflected by the ionization potentials.read more
Citations
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Journal ArticleDOI
Laser ionization spectra and electronic structure of Kn and NaKn−1 clusters
TL;DR: In this article, photoionization of small K n and NaK n −1 clusters with n ⩽ 34 has been achieved in a crossed laser-molecular-beam experiment.
Journal ArticleDOI
Remarks on the Electrochemical Potential of Small Silver Clusters in Aqueous Solution
TL;DR: In this article, the electrochemical potentials of equilibria of the type Agn⇆Agn + e− and Agn−ↆAg+ e− are discussed.
Journal ArticleDOI
Ionization energies of fullerenes - size and charge dependence
TL;DR: In this paper, the first and higher ionization energies of fullerenes over a wide size range ( - ) were calculated and the results were in very good agreement with available experimental data.
Book ChapterDOI
Elementary attachment and detachment processes. I
R. Stephen Berry,Sydney Leach +1 more
TL;DR: In this article, the authors present a description of the elementary collision processes associated with the production and capture of free charged particles in gases at thermal energies, up to a few electron volts, apart from photoionization that only commences with photons of several volts.
Journal ArticleDOI
Fractional revivals of vibrational wave packets in the NaK A1∑+ state
TL;DR: The real-time vibrational dynamics of NaK molecules excited to the electronic A1∑+ state has been studied isotipe-selectively by means of time-resolved three-photon ionization.
References
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Journal ArticleDOI
Über die Zuordnung von Wellenfunktionen und Eigenwerten zu den Einzelnen Elektronen Eines Atoms
TL;DR: In this paper, Fock's Naherungsmethode zur Behandung des quantenmechanischen Mehrelektronenproblems aufgestellten Gleichungen werden auf etwas allgemeinerer Grundlage diskutiert.
Journal ArticleDOI
Size effect on the melting temperature of gold particles
Philippe A. Buffat,JP Borel +1 more
TL;DR: In this article, the melting points of small gold particles have been measured using a scanning electron-diffraction technique and the experimental results are quantitatively in good agreement with two phenomenological models.
Introduction to solid state physics
TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.