Signature of surface periodicity in the electronic structure of Si(1 1 1)-(7 × 7). (20th April 2017)

• Record Type: Journal Article
• Authors: Sheverdyaeva, P M; Mahatha, S K; Ronci, F; Colonna, S; Moras, P; Satta, M; Flammini, R
• Is Part Of: Journal of physics. Volume 29:Number 21(2017)
• Publication Date: 2017-04-20
• Subjects: silicon -- ARPES -- 7 × 7 -- surface state; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa6a7b
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: The surface electronic structure of Si(1 1 1)- 7 × 7 has been studied by angle-resolved photo electron spectroscopy. Replicas of the S 1 surface state are found in correspondence with several 7 × 7 unit cells in the reciprocal space. This observation resolves in a direct way the long-standing dichotomy between the structural and electronic properties of the system previously discussed on the basis of the 2 × 2 or 3 × 3 R30° surface models.