"We study the connection between the spin-heat and spin-charge response in a disordered Fermi gas with spin-orbit coupling. It is shown that the ratio between the above responses can be expressed as the thermopower S=−(πkB)2Tσ′\/3eσ times a number Rs which depends on the strength and type of the spin-orbit couplings considered. The general results are illustrated by examining different two-dimensional electron or hole systems with different and competing spin-orbit mechanisms, and we conclude that a metallic system could prove much more efficient as a heat-to-spin than as a heat-to-charge converter."
BORGE DE PRADA, J., Gorini, C., Raimondi, R. (2013). Spin thermoelectrics in a disordered Fermi gas. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 87, 085309-085315 [10.1103/PhysRevB.87.085309].
Spin thermoelectrics in a disordered Fermi gas
BORGE DE PRADA, JUAN;RAIMONDI, Roberto
2013-01-01
Abstract
"We study the connection between the spin-heat and spin-charge response in a disordered Fermi gas with spin-orbit coupling. It is shown that the ratio between the above responses can be expressed as the thermopower S=−(πkB)2Tσ′\/3eσ times a number Rs which depends on the strength and type of the spin-orbit couplings considered. The general results are illustrated by examining different two-dimensional electron or hole systems with different and competing spin-orbit mechanisms, and we conclude that a metallic system could prove much more efficient as a heat-to-spin than as a heat-to-charge converter."I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
