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Ai-Min, Guo ; Díaz García, Elena ; Gaul, C. ; Gutierrez, R. ; Domínguez-Adame Acosta, Francisco ; Cuniberti, G. ; Sun, Qing-feng | American Physical Society | 2014-04-28We report on spin transport along double-helical molecular systems by considering various contact configurations and asymmetries between the two helical strands in the regime of completely coherent charge transport. Our results reveal that no sp[...]texto impreso
Gaul, C. ; Rodriguez, A. ; Lima, R. P. A. ; Domínguez-Adame Acosta, Francisco | American Physical Society | 2013-07-21We study the semiclassical dynamics of interacting electrons in a biased crystal lattice. A complex dynamical scenario emerges from the interplay between the Coulomb and the external electric fields. When the electrons are far apart, the Coulomb[...]texto impreso
Gaul, C. ; Domínguez-Adame Acosta, Francisco ; Sols Lucía, Fernando ; Zapata, I. | American Physical Society | 2014-01-21Two-particle scattering in graphene is a multichannel problem, where the energies of the identical or opposite-helicity channels lie in disjoint energy segments. Due to the absence of Galilean invariance, these segments depend on the total momen[...]texto impreso
Gutierrez, R. ; Díaz García, Elena ; Gaul, C. ; Brumme, T. ; Domínguez-Adame Acosta, Francisco ; Cuniberti, G. | Amer Chemical Soc | 2013-10-31This study is devoted to a consistent derivation of an effective model Hamiltonian to describe spin transport along a helical pathway and in the presence of spin-orbit interaction, the latter being induced by an external field with helical symme[...]texto impreso
Díaz García, Elena ; Estévez, P. G. ; Cerveró, J. M. ; Gaul, C. ; Díez, E. ; Domínguez-Adame Acosta, Francisco | IOP Publishing | 2018-04-27It is widely admitted that the helical conformation of certain chiral molecules may induce a sizable spin selectivity observed in experiments. Spin selectivity arises as a result of the interplay between a helicity-induced spin-orbit coupling (S[...]texto impreso
Gaul, C. ; Lima, R. P. A. ; Díaz García, Elena ; Mueller, C. A. ; Domínguez-Adame Acosta, Francisco | American Physical Society | 2009-06-26We investigate Bloch oscillations of interacting cold atoms in a mean-field framework. In general, atom-atom interaction causes dephasing and destroys Bloch oscillations. Here we show that Bloch oscillations are persistent if the interaction is [...]texto impreso
Munarriz, J. ; Gaul, C. ; Malyshev, Andrey ; Orellana, P. A. ; Mueller, C. A. ; Domínguez-Adame Acosta, Francisco | American Physical Society | 2013-10We find clear signatures of spin-dependent negative differential resistance in compound systems comprising a graphene nanoribbon and a set of ferromagnetic insulator strips deposited on top of it. The periodic array of ferromagnetic strips induc[...]
