Thermoelectric properties of magnetic configurations of graphene-like nanoribbons in the presence of Rashba and spin-orbit interactions
AbstractIn this paper we investigate the influence of spin-orbit interaction and two types of Rashba interaction (intrinsic and extrinsic) on magnetic and thermoelectric properties of graphene-like zigzag nanoribbons based on the honeycomb lattice. We utilize the Kane-Mele model with additional Rashba interaction terms. Magnetic structure is described by the electron-electron Coulomb repulsion reduced to the on-site interaction (Hubbard term) in the mean field approximation. We consider four types of magnetic configurations: ferromagnetic and antiferromagnetic with in-plane and out-of plane direction of magnetization. Firstly, we analyze the influence of extrinsic Rashba coupling on systems with negligible spin-orbit interaction, e.g. graphene of an appropriate substrate. Secondly, we discuss the interplay between spin-orbit and intrinsic Rashba interactions. This part is relevant to materials with significant spin-orbit coupling such as silicene and stanene. © 2016 Elsevier B.V.
|Journal series||Physica E-Low-Dimensional Systems & Nanostructures, ISSN 1386-9477|
|Publication size in sheets||0.5|
|Keywords in English||Graphene; Honeycomb structures; Nanoribbons; Thermoelectric equipment; Thermoelectricity, Coulomb repulsions; Ferromagnetic and anti-ferromagnetic; Magnetic configuration; Mean field approximation; Out-of-plane direction; Spin orbit interactions; Spin-orbit couplings; Thermoelectric properties, Magnetism|
|Score|| = 20.0, 28-11-2017, ArticleFromJournal|
= 25.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2016 = 2.221 (2) - 2016=2.064 (5)|
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