Journal
PHYSICAL REVIEW B
Volume 80, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.195409
Keywords
Coulomb blockade; ferromagnetism; Green's function methods; heat transfer; magnetic moments; magnetocaloric effects; quantum dots; thermoelectric power
Funding
- Polish Ministry of Science and Higher Education through National Scientific network ARTMAG
Ask authors/readers for more resources
Charge transport accompanied by heat transfer through a single-level quantum dot coupled to ferromagnetic leads with noncollinear magnetic moments is studied theoretically in the linear and nonlinear transport regimes. Calculations performed in the framework of nonequilibrium Green's function formalism and the equation of motion method reveal a significant influence of Coulomb blockade on thermal transport processes. The thermopower S and thermal efficiency described by the figure of merit ZT depend on magnetic configuration of the system. Two physically different situations are considered; one appears when spin accumulation is excluded and the second one when spin accumulation is relevant. In the latter case we also calculate the corresponding spin thermopower. Apart from this, magnetothermopower is introduced and discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available