Hybridization and anisotropy in the exchange interaction in 3D Dirac semimetals
arXiv:1511.06933 · doi:10.1103/PhysRevB.93.094433
Abstract
We study the Ruderman-Kittel-Kasuya-Yosida interaction in 3D Dirac semimetals. Using retarded Green's functions in real space, we obtain and analyze asymptotic expressions for the interaction, with magnetic impurities at different distances and relative angle with respect to high symmetry directions on the lattice. We show that the Fermi velocity anisotropy in these materials produces a strong renormalization of the magnitude of the interaction, as well as a correction to the frequency of oscillation in real space. Hybridization of the impurities to different conduction electron orbitals are shown to result in interesting anisotropic spin-spin interactions which can generate spiral spin structures in doped samples.
5 pages + supplement
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Cited by in corpus (13)
- RKKY interaction in three-dimensional electron gases with linear spin-orbit coupling
- Fermi arc plasmons in Weyl semimetals
- Kondo Effect with Weyl Semimetal Fermi Arcs
- Velocity-determined anisotropic behaviors of RKKY interaction in 8-\textit{Pmmn} borophene
- Single Magnetic Impurity in Tilted Dirac Surface States
- Interlayer RKKY Coupling in Bulk Rashba Semiconductors under Topological Phase Transition
- RKKY coupling in Weyl semimetal thin films
- Modified exchange interaction between magnetic impurities in spin-orbit coupled quantum wires
- Spatial anisotropy of Kondo screening cloud in a type-II Weyl semimetal
- Selective generation and amplification of RKKY interactions by P-N interface
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- Minimal Hamiltonian deformations as bulk probes of effective non-Hermiticity in Dirac materials