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Spin-resolved band structure of a densely packed Pb monolayer on Si(111)

TitleSpin-resolved band structure of a densely packed Pb monolayer on Si(111)
Publication TypeJournal Article
Year of Publication2017
AuthorsBrand, C, Muff, S, Fanciulli, M, Pfnur, H, Tringides, MC, Dil, JH, Tegenkamp, C
JournalPhysical Review B
Date Published07
Type of ArticleArticle
ISBN Number2469-9950
Accession NumberWOS:000406244000008
Keywordsfermi-surface, layers, order, phases, physics, semiconductor surface, silicon, superconductivity

ur results fully agree with density functional theory calculations done by Ren et al. [Phys. Rev. B 94, 075436 (2016)]. We observe a local Zeeman-type splitting of a fully occupied and spin-polarized surface band at the band at the (K) over bar root 3 points. The growth of this densely packed Pb structure results in the formation of imbalanced rotational domains, which triggered the detection of C-3v symmetry forbidden spin components for surface states around the Fermi energy. Moreover, the Fermi surface of the metallic surface state of this phase is Rashba spin split and revealed a pronounced warping. However, the 2D nesting vectors are incommensurate with the atomic structure, thus keeping this system rather immune against charge density wave formation and possibly enabling a superconducting behavior.

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