Magnon-driven quantum-dot heat engine
arXiv:1206.1259 · doi:10.1209/0295-5075/99/27001
Abstract
We investigate a heat- to charge-current converter consisting of a single-level quantum dot coupled to two ferromagnetic metals and one ferromagnetic insulator held at different temperatures. We demonstrate that this nano engine can act as an optimal heat to spin-polarized charge current converter in an antiparallel geometry, while it acts as a heat to pure spin current converter in the parallel case. We discuss the maximal output power of the device and its efficiency.
6 pages, 4 figures, published version, selected as Editor's choice
References in corpus (6)
- Realization of XNOR and NAND spin-wave logic gates
- Efficiency at maximum power: An analytically solvable model for stochastic heat engines
- Optimal energy quanta to current conversion
- Counting Statistics of Non-Markovian Quantum Stochastic Processes
- Full Counting Statistics in Strongly Interacting Systems: Non-Markovian Effects
- Influence of spin waves on transport through a quantum-dot spin valve