Three-Body Breakup in the Dissociative Recombination of the Covalent Triatomic Molecular Ion<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:msubsup></mml:math>

Zhaunerchyk, Vitali; Geppert, Wolf D.; Larsson, Mats; Thomas, Richard; Bahati, E.; Bannister, M. E.; Fogle, M.; Vane, C. R.; Österdahl, Fabian

doi:10.1103/physrevlett.98.223201

Cited by 18 publications

(14 citation statements)

References 33 publications

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“…The same tendency is observed, for example, in the DR of the oxygen ions, O 2 + , 33 O 3 + , 30 and O 4 + , 34 and in the DR of H 3 O + ͑H 2 O͒ n ions ͑n =0-6͒. The DR rate coefficients at room temperature for N 2 + and N 4 + were reported to be 1.75ϫ 10 −7 cm 3 s −1 ͑Ref.…”

Section: Discussionsupporting

confidence: 61%

“…The deviation of the cross section at small energies from the 1 / E dependence could be due to resonances in the cross section, which cannot be resolved due to energy spread in the electron energy distribution ͑Ϸ2 meV͒ but which, nevertheless, play an important role for the effective cross section dependence. 30 Furthermore, the slope of the temperature dependent rate coefficient for O 3 + is very close to being characteristic of the direct mechanism, T −0.5 . 28 The slope of the cross section becomes steeper above 65 meV which can be explained by the opening of a new competing autoionization channel into a vibrationally excited state of N 3 + .…”

Section: Discussionmentioning

confidence: 57%

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Dissociative recombination study of N3+: Cross section and branching fraction measurements

Zhaunerchyk

Geppert

Vigren

et al. 2007

The Journal of Chemical Physics

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We report an investigation into the dissociative recombination of the azide radical cation, N(3) (+). The reaction rate constant has been measured to be 6.47 x 10(-7) cm(3) s(-1) at room temperature. This value is smaller than those reported earlier for the ion-electron neutralization of N(3) (+) at nitrogen atmospheric pressure. A strong propensity to dissociate through the N(2)+N channel has been observed.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 57%

Dissociative recombination study of N3+: Cross section and branching fraction measurements

Zhaunerchyk

Geppert

Vigren

et al. 2007

The Journal of Chemical Physics

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“…There has been ample experimental evidence for many-body interactions in the past, notably in studies of ultra-cold gases of alkaline atoms (Büchler et al, 2007), the stability of molecules like ozone (Zhaunerchyk et al, 2007), four-atom exchange in 3 He (McMahan and Wilkins, 1975), chirality in magnetic compounds (Grigoriev et al, 2005), ring-exchange (Coldea et al, 2001) and three-body correlations of vortex states (Menon et al, 2006) in high-temperature superconductors, or domain-wall fluctuations in (anti-) ferromagnets (Shpyrko et al, 2007). Novel quantum phases with intriguing physical properties can arise from manybody interactions which are usually described on the basis of pair potentials G(r, t).…”

Section: Discussionmentioning

confidence: 99%

Magnetic Cluster Excitations

Fürrer

2010

Int. J. Mod. Phys. B

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Magnetic clusters, i.e., assemblies of a finite number (between two or three and several hundred) of interacting spin centers which are magnetically decoupled from their environment, can be found in many materials ranging from inorganic compounds, magnetic molecules, artificial metal structures formed on surfaces to metalloproteins. The magnetic excitation spectra in them are determined by the nature of the spin centers, the nature of the magnetic interactions, and the particular arrangement of the mutual interaction paths between the spin centers. Small clusters of up to four magnetic ions are ideal model systems to examine the fundamental magnetic interactions which are usually dominated by Heisenberg exchange, but often complemented by anisotropic and/or higher-order interactions. In large magnetic clusters which may potentially deal with a dozen or more spin centers, the possibility of novel many-body quantum states and quantum phenomena are in focus. In this review the necessary theoretical concepts and experimental techniques to study the magnetic cluster excitations and the resulting characteristic magnetic properties are introduced, followed by examples of small clusters demonstrating the enormous amount of detailed physical information which can be retrieved. The current understanding of the excitations and their physical interpretation in the molecular nanomagnets which represent large magnetic clusters is then presented, with an own section devoted to the subclass of the singlemolecule magnets which are distinguished by displaying quantum tunneling of the magnetization. Finally, some quantum many-body states are summarized which evolve in magnetic insulators characterized by built-in or field-induced magnetic clusters. The review concludes addressing future perspectives in the field of magnetic cluster excitations.

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“…Electron-impact dissociative recombination of 0 3+ has been investigated by the ion storage-ring method [16] and is dominated at 0 eV by three-body dissociation. The pho todissociation of 0 3+ yielding 0 + or 0 2+ fragments has also been studied intensively.…”

Section: Introductionmentioning

confidence: 99%

Electron-impact dissociation of ozone cations toO+fragments

2015

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Absolute cross sections for electron-impact dissociation of CL ions yielding an 0 + fragment are measured. The animated electron-ion crossed-beam method is applied in the energy range from 1 eV to 2.5 keV. The maximum total cross section for 0 + fragment production is found to be (3.6 ± 0.3) x 10-16 cm2 at 75 eV and such a large value of the cross section extends down to low energies. The threshold energy is found to be below 2 eV. Contributions of dissociative excitation and dissociative ionization to 0 + fragment production are determined separately. The total kinetic energy release distributions are determined at select electron energies. Present data are discussed and compared with recent results [S. H. M. Deng et al., Phys. Rev. A 82, 062715 (2010)].

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Three-Body Breakup in the Dissociative Recombination of the Covalent Triatomic Molecular IonO3+

Cited by 18 publications

References 33 publications

Dissociative recombination study of N3+: Cross section and branching fraction measurements

Dissociative recombination study of N3+: Cross section and branching fraction measurements

Magnetic Cluster Excitations

Electron-impact dissociation of ozone cations toO+fragments

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