Magnon cotunneling through a quantum dot
arXiv:1706.07914 · doi:10.1016/j.jmmm.2017.06.088
Abstract
I consider a single-level quantum dot coupled to two reservoirs of spin waves (magnons). Such systems have been studied recently from the point of view of possible coupling between electronic and magnonic spin currents. However, usually weakly coupled systems were investigated. When coupling between the dot and reservoirs is not weak, then higher order processes play a role and have to be included. Here I consider cotunneling of magnons through a spin-occupied quantum dot, which can be understood as a magnon (spin) leakage current in analogy to leakage currents in charge-based electronics. Particular emphasis has been put on investigating the effect of magnetic field and temperature difference between the magnonic reservoirs.
6 pages, 4 figures
References in corpus (25)
- Spin Caloritronics
- Spin Seebeck insulator
- The building blocks of magnonics
- Long distance transport of magnon spin information in a magnetic insulator at room temperature
- Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
- Theory of magnon-driven spin Seebeck effect
- Thermoelectric energy harvesting with quantum dots
- Thermoelectric efficiency at maximum power in a quantum dot
- Quantum-dot Carnot engine at maximum power
- Cooling and heating with electron spins: Observation of the spin Peltier effect
- Tunneling through molecules and quantum dots: master-equation approaches
- Spin convertance at magnetic interfaces
- Magnon-driven quantum-dot heat engine
- Hybrid Microwave-Cavity Heat Engine
- Three-terminal thermoelectric transport through a molecule placed on an Aharonov-Bohm ring
- Correlations of heat and charge currents in quantum-dot thermoelectric engines
- Predicted Rectification and Negative Differential Spin Seebeck Effect at Magnetic Interfaces
- Designing a Spin-Seebeck Diode
- Theory of asymmetric and negative differential magnon tunneling under temperature bias: Towards a spin Seebeck diode and transistor
- Fokker-Planck approach to the theory of magnon-driven spin Seebeck effect
- Thermo-magnonic diode: rectification of energy and magnetization currents
- Mechanically-controlled spin-selective transport
- Influence of spin waves on transport through a quantum-dot spin valve
- Magnon transport through a quantum dot: Conversion to electronic spin and charge currents
- Magnon transport and spin current switching through quantum dots