Non-collinear Exchange Coupling in Trilayer Magnetic Junction and its Connection to Fermi Surface Topology
arXiv:cond-mat/0607203 · doi:10.1103/PhysRevB.73.241307
Abstract
We investigate the non-collinear exchange coupling across the trilayer magnetic junction composed of an intermediate layer with Rashba interaction and two sandwiching ferromagnetic ones. To compute the mediated exchange coupling, one needs to go beyond the single-particle argument and integrate over the contributions from the whole Fermi surface. Surprisingly, we find that the topology of the Fermi surface plays a crucial role in determining whether the oscillatory RKKY or the spiral interactions would dominate. At the end, we discuss the connection of our numerical results to experiments and potential applications.
arXiv comment4 pages, 5 figures, final version to appear in PRB Rapid Communication
References in corpus (10)
- Spintronics: Fundamentals and applications
- Universal Intrinsic Spin-Hall Effect
- Dissipationless Quantum Spin Current at Room Temperature
- Ferromagnetic Semiconductors: Moving Beyond (Ga,Mn)As
- 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
- Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids
- Diluted Magnetic Semiconductor at Finite Temperature
- Softening of Spin-Wave Stiffness near the Ferromagnetic Phase Transition in Diluted Magnetic Semiconductors
- Spiral Exchange Interaction in Diluted Magnetic Semiconductor Junction
Cited by in corpus (6)
- Magnetoelectric Response of the Time-Reversal Invariant Helical Metal
- RKKY interaction in a disordered two-dimensional electron gas with Rashba and Dresselhaus spin-orbit couplings
- Interlayer RKKY Coupling in Bulk Rashba Semiconductors under Topological Phase Transition
- Spatial trends of non-collinear exchange coupling mediated by itinerant carriers with different Fermi surfaces
- Floquet-driven indirect exchange interaction mediated by topological insulator surface states
- RKKY interaction induced by two-dimensional hole gases