Abstract
Electron impact ionization of La, Pr, Ho, Tm, and Lu Atoms has been studied through measurements of absolute total (apparent σ a and counting σ c ) and charge-separated partial cross sections σ q + ( q =1–4) from the single ionization thresholds to 900 eV. The absolute and partial measurements were done using an electron–atom crossed beam apparatus and a magnetic deflection mass spectrometer, respectively. After a brief discussion on the present results, an overall discussion is made in more compact form on the cross-section results for 13 lanthanide-atom species including those for the 8 species treated in our previous studies. It is confirmed that the atoms having a 5 d electron (La, Gd, and Lu) provide larger single-ionization cross sections and thereby larger σ c values and larger population of singly-charged ions. It is also confirmed that resonance-like feature starting around the 4 d limits is observed in the σ 3+ curves for lighter lanthanide atoms. This phenomenon, observed for the first time for...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
