Calculations of electron scattering cross sections from tungsten precursors used in FEBID

被引:2
作者
Pandey, Meenu [1 ]
Antony, Bobby [1 ]
机构
[1] Indian Inst Technol ISM, Dept Phys, Dhanbad 826004, Jharkhand, India
关键词
Spherical complex optical potential; Modified additivity rule; Scattering cross sections; Complex scattering potential ionization contribution; Tungsten precursors; BEAM-INDUCED DEPOSITION; DISSOCIATION-ENERGIES; IONIZATION; MOLECULES; HEXAFLUORIDE; CO;
D O I
10.1016/j.elspec.2024.147430
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
In this work, the integral elastic, inelastic, ionization, and momentum transfer scattering cross sections of WF 6 , WCl 6 , and W(CO) (6) molecules are calculated using a quantum mechanical method. These are considered precursors for tungsten deposition using the focused electron beam-induced deposition (FEBID) technique. The spherical complex optical potential (SCOP) formalism is used to figure out the total elastic, inelastic, and momentum transfer cross sections. The complex scattering potential ionization contribution (CSP-ic) method is used to find the ionization cross sections in the inelastic channel. The calculations are performed on a fine grid in the energy range from the ionization potential to 5 keV. We have also reported comparisons of our data with available theoretical and experimental results. All types of scattering cross sections for WCl (6) is reported for the first time.
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页数:7
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