Spatial trends of non-collinear exchange coupling mediated by itinerant carriers with different Fermi surfaces
arXiv:0901.4577 · doi:10.1103/PhysRevB.79.045315
Abstract
We study the exchange coupling mediated by itinerant carriers with spin-orbit interaction by both analytic and numeric approaches. The mediated exchange coupling is non-collinear and its spatial trends depend on the Fermi surface topology of the itinerant carriers. Taking Rashba interaction as an example, the exchange coupling is similar to the conventional Ruderman-Kittel-Kasuya-Yosida type in weak coupling. On the other hand, in the strong coupling, the spiral interaction dominates. In addition, inclusion of finite spin relaxation always makes the non-collinear spiral exchange interaction dominant. Potential applications of our findings are explained and discussed.
9 pages, 7 figures
References in corpus (20)
- Spintronics: Fundamentals and applications
- Giant Spin-splitting in the Bi/Ag(111) Surface Alloy
- Ferromagnetic Semiconductors: Moving Beyond (Ga,Mn)As
- Tunable Non-local Spin Control in a Coupled Quantum Dot System
- Spin-orbit coupling effects on quantum transport in lateral semiconductor dots
- Twisted exchange interaction between localized spins embedded in a one- or two-dimensional electron gas with Rashba spin-orbit coupling
- Topological Change of the Fermi Surface in Low Density Rashba Gases: Application to Superconductivity
- Sum rules for spin-Hall conductivity cancelation
- RKKY and magnetic field interactions in coupled Kondo quantum dots
- Bound states in a 2D short range potential induced by spin-orbit interaction
- Off-Fermi surface cancellation effects in spin-Hall conductivity of a two-dimensional Rashba electron gas
- Energy levels of a two-dimensional hydrogen atom with spin-orbit Rashba interaction
- Electron Spin Dynamics in Impure Quantum Wells for Arbitrary Spin-Orbit Coupling
- Kondo Quantum Dots and the Novel Kondo-doublet interaction
- Diluted Magnetic Semiconductor at Finite Temperature
- Disorder-Induced Broadening of the Density of States for 2D Electrons with Strong Spin-Orbit Coupling
- Softening of Spin-Wave Stiffness near the Ferromagnetic Phase Transition in Diluted Magnetic Semiconductors
- Non-collinear Exchange Coupling in Trilayer Magnetic Junction and its Connection to Fermi Surface Topology
- Spiral Exchange Interaction in Diluted Magnetic Semiconductor Junction
- Spiral Exchange Coupling in Trilayer Magnetic Junction Mediated by Diluted-Magnetic-Semiconductor Thin Film
Cited by in corpus (6)
- RKKY interaction in three-dimensional electron gases with linear spin-orbit coupling
- RKKY interaction in a disordered two-dimensional electron gas with Rashba and Dresselhaus spin-orbit couplings
- In-plane noncollinear exchange coupling mediated by helical edge states in Quantum Spin Hall system
- Size effect of Ruderman-Kittel-Kasuya-Yosida interaction mediated by electrons in nanoribbons
- RKKY interaction induced by two-dimensional hole gases
- Magnetic correlation between two local spins in a quantum spin Hall insulator