Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
76 (2000), S. 553-555
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Using a first-principles approach, we assign N 1s core-level shifts at ammonium exposed Si(001)2×1 surfaces to definite bonding configurations of N atoms. Model structures are obtained by fully relaxing the atomic positions of N atoms in different bonding configurations. Calculated values of N 1s core-level shifts of N-Si3, N-Si2H, and N-SiH2 structural units show a linear dependence on the number of nearest-neighbor H atoms, in good agreement with data from photoemission experiments. Our results support the picture in which NH3 is adsorbed dissociatively as NH2 and H. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.125815
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