Evidence for Anionic Excess Electrons in a Quasi-Two-Dimensional Ca2N Electride by Angle-Resolved Photoemission Spectroscopy.
J Am Chem Soc
; 138(8): 2496-9, 2016 Mar 02.
Article
em En
| MEDLINE
| ID: mdl-26840946
ABSTRACT
Angle-resolved photoemission spectroscopy (ARPES) study of a layered electride Ca2N was carried out to reveal its quasi-two-dimensional electronic structure. The band dispersions and the Fermi-surface map are consistent with the density functional theory results except for a chemical potential shift that may originate from the high reactivity of surface excess electrons. Thus, the existence of anionic excess electrons in the interlayer region of Ca2N is strongly supported by ARPES.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2016
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Article