On the ionization energy of the atomic gold ion Au2+

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Resumo

Analysis of the luminescence spectra of the plasma formed by laser ablation of a gold target immersed in superfluid helium at a laser power density below the breakdown threshold of liquid helium shows that the ionization energy of the Au2+ ion should be at least 34 eV.

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Sobre autores

R. Boltnev

Joint Institute for High Temperatures of the Russian Academy of Sciences; Branch of the N.N. Semenov Federal Research Center for Chemical Physics

Autor responsável pela correspondência
Email: boltnev@gmail.com
Rússia, Moscow; Chernogolovka

A. Karabulin

Joint Institute for High Temperatures of the Russian Academy of Sciences; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Email: boltnev@gmail.com
Rússia, Moscow; Chernogolovka

I. Krushinskaya

Branch of the N.N. Semenov Federal Research Center for Chemical Physics

Email: irkrush@gmail.com
Rússia, Chernogolovka

A. Pelmenev

Branch of the N.N. Semenov Federal Research Center for Chemical Physics

Email: boltnev@gmail.com
Rússia, Chernogolovka

V. Matyushenko

Branch of the N.N. Semenov Federal Research Center for Chemical Physics

Email: boltnev@gmail.com
Rússia, Chernogolovka

Bibliografia

  1. NIST Atomic Spectra Database, NIST Standard Reference Database 78, https://physics.nist.gov/PhysRefData/ASD/ionEnergy.html
  2. Korgaonkar A.V., Gopalaraman C.P., and Rohatgi V.K. // Int. J. Mass Spectrom. and Ion Physics. 1981. V. 40. P. 127. https://doi.org/10.1016/0020-7381(81)80036-8
  3. Boltnev R.E., Karabulin A.V., Krushinskaya I.N., Pelmenev A.A., Matyushenko V.I. // High Energy Chem. 2023. V. 57. P. 168. https://doi.org/10.1134/S0018143923020066
  4. Sirisky S., Yang Y., Wei W., Maris H.J. // J. Low Temp. Phys. 2017. V. 189. № 1–2. P. 53. https://doi.org/10.1007/s10909-017-1786-y
  5. Tokaryk D.W., Brooks R.L., Hunt J.L. // Phys. Rev. A. 1993. V. 48. P. 364. https://doi.org/10.1103/PhysRevA.48.364
  6. Benderskii A.V., Zadoyan R., Schwentner N., Apkarian V.A. // J. Chem. Phys. 1999. V. 110. P. 1542. https://doi.org/10.1063/1.477796

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2. Fig. 1. Comparison of experimental spectra of plasma formed at the surface of a gold target at laser power densities below and above the breakdown threshold of liquid helium (green solid and blue dotted lines, respectively). Red arrows show the positions of atomic lines and molecular bands characteristic of helium atoms and molecules.

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