Nogaret, A., Saraiva, P., Dai, B. and Portal, J. C., 2010. Control of spin currents with double spin resonance. Physica E-Low-Dimensional Systems & Nanostructures, 42 (4), pp. 926-928.
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This paper develops a theoretical picture for coherently controlling spin currents with two resonant transitions which bridge the Zeeman gap of a two-dimensional electron system. One spin flip transition is propelled by r.f. electron oscillations in a sloping magnetic field. The second transition is induced by microwaves. When both transitions are simultaneously resonant, spin flips are inhibited by a formation of a dark state. We calculate the probability of this dark state as the system crosses resonance and show that it fits the ESR peak in the resistance of a magnetic superlattice.
|Item Type ||Articles|
|Creators||Nogaret, A., Saraiva, P., Dai, B. and Portal, J. C.|
|Uncontrolled Keywords||inhomogeneous magnetic field,spin resonance|
|Departments||Faculty of Science > Physics|
|Additional Information||18th International Conference on Electronic Properties of Two-Dimensional Systems. 19-24 July 2009. Kobe, Japan|
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