Sebastian T. B. Goennenwein and Gerrit E. W. Bauer
Nature Nanotech. 7, 145 (2012)
 |
| Thermoelectrics with a spin. |
Direct observation of the spin-dependent Peltier effect.
J. Flipse, F. L. Bakker, A. Slachter, F. K. Dejene and B. J. vanWees
Nature Nanotech. 7, 166 (2012)
 |
| Concept of the spin-dependent Peltier effect. a) A pure spin current is sent through a non-magnetic metal (N)/ferromagnetic metal (F) interface. In N, the Peltier heat current for both spin species is equal. As the flow direction in the two spin channels is opposite, the total heat current is cancelled. In F, the heat currents are different for majority and minority carriers, leading to a net heat current from the interface into F or vice versa. b), Generated temperature profile in the system. Spin relaxation in F reduces the spin current, thereby decreasing the induced heat current. |
No comments:
Post a Comment