Intrinsic Spin Hall and Spin Nernst Effects in Single-Layer Graphene: Tight-Binding vs. Effective Model |
| A. Dyrdała and J. Barnaśa,b
aDepartment of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland bInstitute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland |
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| We calculate topological contributions to the spin Hall and spin Nernst effects due to intrinsic spin-orbit interaction in a single-layer graphene. To describe electronic spectrum of the graphene we have assumed the k·p model as well as the full tight-binding Hamiltonian. The corresponding contributions to the spin Hall and spin Nernst effects have been determined using the linear response theory and Green function formalism. |
| DOI: 10.12693/APhysPolA.121.1198 PACS numbers: 73.43.-f, 72.25.Hg, 73.61.Wp |