1971
DOI: 10.1016/s0022-3697(71)80184-1
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Alternations in the secondary emission of molecular ions from noble metals

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Cited by 66 publications
(20 citation statements)
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“…Over a general and regular decrease of the signals when n increases, one can detect slight oscillations : peaks with odd n are relatively more intense than those with even n. This fact can be understood with the help of the theoretical predictions of Joyes [15] concerning the stability of noble metal clusters. As long as the equilibrium state of these clusters is considered, ions AuZn+ 1 with closed electronic shells are more stable than ions Au2n with one unpaired electron.…”
Section: 1 Mass Distributionmentioning
confidence: 83%
“…Over a general and regular decrease of the signals when n increases, one can detect slight oscillations : peaks with odd n are relatively more intense than those with even n. This fact can be understood with the help of the theoretical predictions of Joyes [15] concerning the stability of noble metal clusters. As long as the equilibrium state of these clusters is considered, ions AuZn+ 1 with closed electronic shells are more stable than ions Au2n with one unpaired electron.…”
Section: 1 Mass Distributionmentioning
confidence: 83%
“…Nous pensons que dans le cas d'amas a energie de liaison 6lev6e ces phenomenes sont peu importants. Ainsi, pour le cuivre (6nergie de liaison de Cu2 : 2,05 eV), les spectres de masse obtenus par ionisation ult6rieure d'amas neutres [10] sont nettement differents des spectres, 6voqu6s plus haut, d'ions moleculaires foumis directement [20] (ils ne presentent pas d'alternances); on peut donc penser qu'ils refletent les intensites des neutres.…”
Section: Rtsultats Exptrimentaux -Dans 1'article Deunclassified
“…Par exemple, dans 1'6tude des polyenes, les molecules ou les ions (comme CsH0160-) a couche 1C complete presentent des stabilites remarquables [39]. On peut rappeler aussi que le meme effet apparait dans les bandes « s » de valence des amas de m6taux a 1 electron de valence par atome ; on explique ainsi les altemances, evoquees au chapitre 1, dans les intensites d'emission des ions de type Cu' [20].…”
Section: Rtsultats Exptrimentaux -Dans 1'article Deunclassified
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“…Several modeling approaches to molecular ion emission have been taken (24)(25)(26)(27)(28)(29)(30) In this paper we describe a study of secondary molecular ions isoelectronic with C , i.e. triple bond anologues.…”
mentioning
confidence: 99%