Current Induced Heat Generation in Ferromagnet-Quantum Dot-Ferromagnet System
AbstractWe study the heat generation in ferromagnet-quantum dot-ferromagnet system by the non-equilibrium Green’s functions method. Heat generation under the influence of ferromagnet leads is very different compared with a system with normal metal leads. The significant effects in heat generation are caused by the polarization angle θ associated with the orientation of polarized magnetic moment of electron in the ferromagnetic terminals. From the study of heat generation versus source drain bias (Q-eV) curves, we find that the heat generation decreases as θ increases from 0 to 0.7π. The heat generation versus gate voltage (Q-eVg) curves also display interesting behavior with increasing polarization angle θ. Meanwhile, heat generation is influenced by the relative angle θ of magnetic moment in the ferromagnetic leads. These results will provide theories to this quantum dot system as a new material of spintronics. View Full-Text
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Zhao, L.; Chen, Q.; Zhang, Y.; Zhao, L. Current Induced Heat Generation in Ferromagnet-Quantum Dot-Ferromagnet System. Materials 2015, 8, 3854-3863.
Zhao L, Chen Q, Zhang Y, Zhao L. Current Induced Heat Generation in Ferromagnet-Quantum Dot-Ferromagnet System. Materials. 2015; 8(7):3854-3863.Chicago/Turabian Style
Zhao, Lili; Chen, Qiao; Zhang, Yamin; Zhao, Lina. 2015. "Current Induced Heat Generation in Ferromagnet-Quantum Dot-Ferromagnet System." Materials 8, no. 7: 3854-3863.