Tight-binding theory of surface spin states on bismuth thin films

Autor:	Saito, Kazuo, Sawahata, Hirokatsu, Komine, Takashi, Aono, Tomosuke
Rok vydání:	2015
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Zdroj:	Phys. Rev. B 93, 041301 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.93.041301
Popis:	The surface spin states for bismuth thin films were investigated using an $sp^3$ tight-binding model. The model explains the experimental observations using angle-resolved photoemission spectroscopy, including the Fermi surface, the band structure with Rashba spin splitting, and the quantum confinement in the energy band gap of the surface states. A large out-of-plane spin component also appears. The surface states penetrate inside the film to within approximately a few bilayers near the Brillouin-zone center, whereas they reach the center of the film near the Brillouin-zone boundary. Comment: 7 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1507.06783 Zobrazit plný text záznamu View this record from Arxiv