1.
Phys Rev Lett
; 107(19): 197201, 2011 Nov 04.
Artículo
en Inglés
| MEDLINE
| ID: mdl-22181638
RESUMEN
We report the observation of tunneling anisotropic magnetothermopower, a voltage response to a temperature difference across an interface between a normal and a magnetic semiconductor. The resulting voltage is related to the energy derivative of the density of states in the magnetic material, and thus has a strongly anisotropic response to the direction of magnetization in the material. The effect will have relevance to the operation of semiconductor spintronic devices, and may indeed already play a role in correctly interpreting the details of some earlier spin injection studies.