Div. of Synchrotron Radiation Research

SLF
MAX-lab
Research
Exjobb
Seminars
Staff
Publications
Links
Intranet
Download
Secureweb
Teaching

Feifel, R., K. Ueda, K. Okada, L. Karlsson, S. Svensson, and S. L. Sorensen
Probing doubly excited ionic states of N2+ via a triple excitation above the N 1s threshold in the N2 molecule
Phys. Rev. A 67 032504 (2003)

Abstract
Angle-resolved resonant Auger-electron spectroscopy has been carried out on the nitrogen molecule at selected photon energies around 419 eV, where a 1s core electron and two valence electrons are promoted into the lowest unoccupied molecular orbital 1g. Significant enhancement of a specific band, which cannot be disentangled in direct photoionization, is observed at a binding energy of 37.6 eV, with a value of the anisotropy parameter much smaller than 2. We assign this new band to the transition to a doubly excited cationic state of N2, in which two of the excited valence electrons remain in the 1g orbital, proposing a "double spectator" type decay mechanism. This observation shows how to preferentially probe multiply excited configurations of cations using multiple resonant excitation.

Link to the complete paper (if available):
http://ojps.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PLRAAN000067000003032504000001&idtype=cvips


Lunds universitet, Avdelningen för synkrotronljusfysik
Besöks- och leveransadress: Sölvegatan 14, 223 62 Lund
Postadress: Box 118, 221 00 Lund
Fakturaadress: Box 188, 221 00 Lund
OBS! Beställarens för- och efternamn måste alltid anges som referens på fakturan!

Lund University, Division of Synchrotron Radiation Research
Visiting and delivery address: Sölvegatan 14, 223 62 Lund, Sweden
Mail address: Box 118, 221 00 Lund, Sweden
Billing address: Box 188, 221 00 Lund, Sweden
Please observe that all bills have to contain the orderer's first and last name as the reference.

Phone: +46 (0)46-222 00 00, Fax: +46 (0)46-222 42 21
Webmaster: Johan Gustafson