The ejected electron spectrum of zinc vapour autoionising levels excited by low-energy electron impact

Back, Christoph; White, Michael D.; Pejčev, V; Ross, K J

doi:10.1088/0022-3700/14/9/014

Cited by 23 publications

(11 citation statements)

References 10 publications

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“…In addition, both structures are, within experimental uncertainties, coincident with the two optically forbidden autoionizing states with the same configuration, 3d 9 4s 2 4p 3 P, J=2,0 as observed in the ejected electron spectra [5] and with the calculated assignments [6].…”

Section: Excitation Of the 4 1 D 2 State -Characteristics Of The 3d Osupporting

confidence: 78%

“…With a 3d 10 4s 2 ground state electron configuration and its Z=30 position in the periodic table the spin orbit interaction in zinc atom is already strong enough to cause perturbations and configuration mixing as observed in autoionization by both photon [4] and electron impact [5] and successfully modeled by Mansfield [6]. Photoionization in zinc and other group II B atoms, Cd and Hg, is dominated by the single electron inner shell excitation of the form (n − 1)d 10 ns 2 → (n − 1)d 9 ns 2 mp 1,3 P 1 3 D 1 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spin and Electron Correlation Effects in Excitation of 3d Metal Atoms

Pravica¹,

Cvejanović²,

Napier³

et al. 2006

AIP Conference Proceedings

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Articles you may be interested inHalf-metallicity and spin-contamination of the electronic ground state of graphene nanoribbons and related systems: An impossible compromise?Abstract. Excitation of zinc atoms by electron impact reveals the existence of negative ion states in the autoionizing region of the spectrum where both the configuration interaction and core shielding effects are important. Two resonances are also observed in the energy dependence of the three polarization Stokes parameters when spin polarized electrons are used and the 636.2 nm photons from the 4 1 D 2 observed. These observations point to the role of exchange and spin orbit interaction in the respective negative ion states. The statistical accuracy of the polarization measurements permits the precise determination of the energies and widths of the two negative ion states with better sensitivity than offered by integral cross section measurements.

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Section: Excitation Of the 4 1 D 2 State -Characteristics Of The 3d Osupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Spin and Electron Correlation Effects in Excitation of 3d Metal Atoms

Pravica¹,

Cvejanović²,

Napier³

et al. 2006

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Spectral bandwidth of tuneable pulses was 45 nm (figure 1(b)). The intensity of the 1310 nm pulses focused by 400 mm focal length lens inside the extended plasma was 2×10 14 W cm −2 . The driving pulses were focused on the extended plasma from the (a) Experimental scheme for harmonic generation in zinc plasma using tuneable MIR radiation.…”

Section: Experimental Conditions Of Hhg In Zinc Plasma Using Tuneable...mentioning

confidence: 99%

Resonance enhancement of harmonics in laser-produced Zn II and Zn III containing plasmas using tunable mid-infrared pulses

Ganeev

Suzuki

Yoneya

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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We demonstrate the generation of enhanced tuneable harmonics of the mid-infrared (1250−1400 nm), 65 fs pulses in laser-produced zinc plasma in the regions of Zn II and Z III autoionizing states (77 and 68 nm, respectively). The role of singly and doubly ionized zinc in the modification of harmonic spectra was analyzed by variation of plasma formation conditions. Microprocesses and the propagation effect are also discussed to describe the narrowing of enhanced emission spectra.

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“…Early studies concerned photon absorption [10] from the ground state of zinc to autoionizing J = 1 levels of odd-parity configurations and electron-impact excitation [11] of the "optically forbidden" levels of even-parity configurations as well as levels of odd parity with J = 1. The significance of electron correlations in those studies was indicated, for example, by Cowan and Wilson [12] and Mansfield and Connerade [13] and Mansfield [14], with consideration of the interactions of the configurations of the initial ground 3d 10 4s 2 state, excited 3d 10 4lnl and 3d 9 4s 2 nl states, the final ionic 3d 9 4lnl states, and related shake-up and shake-off processes.…”

Section: Introductionmentioning

confidence: 99%

Negative-ion resonances and cusps in4 1,3Pelectron excitation functions of the zinc atom

et al. 2010

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Negative-ion resonance structures, cusps, and possibly broad shape resonances were observed in the electron impact excitation of the 4s4p 1 P 1 and 4s4p 3 P 0,1,2 states of zinc near the thresholds of the lowest autoionizing states. Angle differential scattered electron excitation functions show strong contributions from the decay of negative-ion resonances built on a 3d excited ion core with final state spin-dependent decay. Most resonances have a 3d 9 ns 2 4p 2 electron configuration, and they appear in one or both of the 1 P 1 and 3 P 0,1,2 states but with different branching ratios and angular behaviors.

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The ejected electron spectrum of zinc vapour autoionising levels excited by low-energy electron impact

Cited by 23 publications

References 10 publications

Spin and Electron Correlation Effects in Excitation of 3d Metal Atoms

Spin and Electron Correlation Effects in Excitation of 3d Metal Atoms

Resonance enhancement of harmonics in laser-produced Zn II and Zn III containing plasmas using tunable mid-infrared pulses

Negative-ion resonances and cusps in4 1,3Pelectron excitation functions of the zinc atom

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