Dynamic RKKY interaction in graphene
arXiv:1112.0205 · doi:10.1103/PhysRevB.85.195411
Abstract
The growing interest in carbon-based spintronics has stimulated a number of recent theoretical studies on the RKKY interaction in graphene, based on which the energetically favourable alignment between magnetic moments embedded in this material can be calculated. The general consensus is that the strength of the RKKY interaction in graphene decays as 1/D3 or faster, where D is the separation between magnetic moments. Such an unusually fast decay for a 2-dimensional system suggests that the RKKY interaction may be too short ranged to be experimentally observed in graphene. Here we show in a mathematically transparent form that a far more long ranged interaction arises when the magnetic moments are taken out of their equilibrium positions and set in motion. We not only show that this dynamic version of the RKKY interaction in graphene decays far more slowly but also propose how it can be observed with currently available experimental methods.
7 pages, 2 figures, submitted
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- RKKY interaction between adsorbed magnetic impurities in graphene: symmetry and strain effects
- RKKY interaction and intervalley processes in p-doped transition metal dichalcogenides
- Anisotropic RKKY interaction in spin polarized graphene
- Indirect RKKY interaction in armchair graphene nanoribbons
- Strain-induced modulation of magnetic interactions in graphene
- Indirect coupling between localized magnetic moments in triangular graphene nanoflakes
- Nonequilibrium susceptibility in photoinduced Floquet states
- RKKY interaction between extended magnetic defect lines in graphene
- Green Functions of Graphene: An Analytic Approach
- Selective generation and amplification of RKKY interactions by P-N interface
- Dynamic RKKY interaction between magnetic moments in graphene nanoribbons
- RKKY interaction in graphene at finite temperature
- RKKY interaction on curved surfaces: Different behavior of Dirac and Schrödinger carriers as interaction mediating particles
- Variable range of the RKKY interaction in edged graphene