Résumé
The lamellar semiconductors GaSe and InSe have been studied with k-resolved inverse-photoemission spectroscopy along two major symmetry directions (Γ¯ K¯ and Γ¯ M¯) of the surface Brillouin zone. Three bands with well-resolved features are observed from which the dispersion of the conduction bands can be determined with good precision. The minimum of the conduction band is found at M¯ in GaSe and at Γ¯ in InSe. These results are compared with theoretical studies using pseudopotential and tight-binding calculations.
langue originale | Anglais |
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Pages (de - à) | 11093-11099 |
Nombre de pages | 7 |
journal | Physical review. B, Condensed matter |
Volume | 49 |
Numéro de publication | 16 |
Les DOIs | |
Etat de la publication | Publié - 1994 |