Absolute Generalized-Oscillator-Strength Measurement of C 1 s Preionization-Edge Electronic Excitations of C<suB>2</suB>F<suB>6</suB>

Chin. Phys. Lett.

2004, Vol. 21

Issue (3): 478-480 DOI:

Original Articles

Absolute Generalized-Oscillator-Strength Measurement of C 1 s Preionization-Edge Electronic Excitations of C₂F₆

FAN Xiao-Wei^1,3;LIAO Tian-He²;ZHANG Xian-Zhou¹;GAO Jin-Hui¹;WEI Jian-Yu¹;K. T. Leung³

¹Department of Physics, Henan Normal University, Xinxiang 453002 ²Department of Physics, Zhengzhou Information Engineering University, Zhengzhou 450002 ³Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada

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FAN Xiao-Wei, LIAO Tian-He, ZHANG Xian-Zhou et al 2004 Chin. Phys. Lett. 21 478-480

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Abstract Absolute generalized oscillator strengths (GOSs) for the C 1 s preionization-edge transitions at 295.4 eV and 297.7 eV in perfluoroethane have been determined as functions of energy loss and momentum transfer (K) at impact energy of 2.5 keV for the first time. The corresponding GOS profiles have been found to have the characteristic dipole-dominated shapes with a strong maximum at K = 0. The spectral features can be interpreted in terms of transitions terminating at the σ^* (C-F) molecular orbital.

Keywords: 34.80.Gs 34.50.Gb

Published: 01 March 2004

PACS:	34.80.Gs	(Molecular excitation and ionization)
	34.50.Gb	(Electronic excitation and ionization of molecules)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I3/0478

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	FAN Xiao-Wei
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	WEI Jian-Yu
	K. T. Leung

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