Sensitivity of the magnetic state of a spin lattice on itinerant electron orbital phase
arXiv:0710.1221 · doi:10.1016/j.physe.2007.09.139
Abstract
Spatially extended localized spins can interact via indirect exchange interaction through Friedel oscillations in the Fermi sea. In arrays of localized spins such interaction can lead to a magnetically ordered phase. Without external magnetic field such a phase is well understood via a "two-impurity" Kondo model. Here we employ non-equilibrium transport spectroscopy to investigate the role of the orbital phase of conduction electrons on the magnetic state of a spin lattice. We show experimentally, that even tiniest perpendicular magnetic field can influence the magnitude of the inter-spin magnetic exchange.
arXiv commentTo be published in PhysicaE EP2DS proceeding
References in corpus (9)
- Tunable Non-local Spin Control in a Coupled Quantum Dot System
- Two-stage Kondo effect in a quantum dot at high magnetic field
- The Kondo Effect in the Presence of Magnetic Impurities
- RKKY and magnetic field interactions in coupled Kondo quantum dots
- Transport spectroscopy of Kondo quantum dots coupled by RKKY interaction
- Possible evidence of a spontaneous spin-polarization in mesoscopic 2D electron systems
- Indirect Exchange Interaction between two Quantum Dots in an Aharonov-Bohm Ring
- Tuning the Non-local Spin-Spin Interaction between Quantum Dots with a Magnetic Field
- Zero-bias anomaly and Kondo-assisted quasi-ballistic 2D transport