Field ionizable cesium metal clusters from a foil diffusion source

Åman, Carina; Pettersson, Jan B. C.; Holmlid, Leif

doi:10.1016/0301-0104(90)85034-t

Cited by 55 publications

(14 citation statements)

References 11 publications

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“…The close connection between the RM cluster picture used here and solid-state descriptions of RM should also be emphasized. Very large clusters with properties similar to RM clusters can be formed in some experiments, for example Cs N clusters with N = 4000-10000 [31,32] in special diffusion sources. Similar clusters formed by hydrogen and hydrocarbons also exist [33].…”

Section: Theorymentioning

confidence: 97%

Experimental Studies and Observations of Clusters of Rydberg Matter and Its Extreme Forms

Holmlid

2011

J Clust Sci

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A review is given of experimental studies of clusters of Rydberg matter (RM) with applications. This is a metallic type of matter with angular momentum l C 1 for the conduction band electrons. The atoms in RM can be one-electron atoms like K, H and D which are most used in the laboratory, or two-electron atoms like He. Mixed clusters of one-electron atoms are easily studied. This material is stable in a vacuum both in the laboratory and in interstellar space. The large stability is valid for the lowest excitation level for each atom type, at l = 1 for H(1) which is the lowest energy state for protium. Typical clusters of RM are planar with magic numbers 7, 19, 37, 61 and 91. Small planar cluster can form stacks of clusters. Close-packed clusters exist for H(1) with magic numbers 4, 6, and 12, and chain clusters mainly formed by D-D ''beads'' are common for D(1). Several methods to study RM clusters are reviewed. Stimulated spectroscopy methods like stimulated emission and stimulated Raman are emphasized. Cluster properties like large polarizability and giant magnetic dipoles are described. Results on rotational levels, vibrational levels and electronic levels are reviewed. The observational evidence for RM clusters in space is discussed in relation to the fundamental experimental studies of the specific cluster properties.

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Section: Theorymentioning

confidence: 97%

Experimental Studies and Observations of Clusters of Rydberg Matter and Its Extreme Forms

Holmlid

2011

J Clust Sci

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“…Rydberg Matter was predicted by Manykin et al around 1980 [32,34,35] as a condensed phase of excited metal atoms, and was used in the literature for the first time to explain experimental results on large field ionizable clusters of Cs in 1991 [36]. The conduction band electrons in RM are excited and delocalized.…”

Section: Theorymentioning

confidence: 97%

Large ion clusters HN+ of Rydberg Matter: Stacks of planar clusters H7

Holmlid

2011

International Journal of Mass Spectrometry

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“…Clusters of excited atoms including Cs and K RM with the quantum-mechanical level of excitation from 4-7 to 10-15 were identified experimentally having the number of excited atoms N as high as hundreds [7,9,10,13,15,23]. Consider a RM Data in this table are given accordingly to Ref.…”

Section: Van Der Waals Interactions With Rm Clustersmentioning

confidence: 99%

Rydberg Matter Clusters: Theory of Interaction and Sorption Properties

Ojovan

2011

J Clust Sci

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Sorption capacity of Rydberg matter (RM) clusters is examined for both electronegative and neutral molecules. Sorption isotherm of RM has been determined as a function of gas pressure and time. It is shown that chemisorption is characteristic for electronegative molecules whereas molecules with no affinity to electrons are absorbed by physisorption mechanism. Sorption capacity of RM is shown to be highest for physisorption mechanism. Absorption of molecules by RM clusters can be used either to detect condensed RM formation or both to maintain high vacuum conditions and high purity of noble gas atmospheres. Sorption capacity of RM can significantly exceed conventional getter sorption capacities.

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Field ionizable cesium metal clusters from a foil diffusion source

Cited by 55 publications

References 11 publications

Experimental Studies and Observations of Clusters of Rydberg Matter and Its Extreme Forms

Experimental Studies and Observations of Clusters of Rydberg Matter and Its Extreme Forms

Large ion clusters HN+ of Rydberg Matter: Stacks of planar clusters H7

Rydberg Matter Clusters: Theory of Interaction and Sorption Properties

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