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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
Heat conduction properties are investigated in a molecular junction modeled as a two-strand ladder with strongly asymmetric thermal transport pathways. By confining anharmonic contributions to only one of the strands, it is shown that tuning of [...]texto impreso
Saiz Bretín, Marta ; Medrano Sandonas, L. ; Gutierrez, R. ; Cuniberti, G. ; Domínguez-Adame Acosta, Francisco | American Physical Society | 2019-04-26Recent progress in nanostructuring of materials opens up possibilities to achieve more efficient thermoelectric devices. Nanofilms, nanowires, and nanorings may show increased phonon scattering while keeping good electron transport, two of the b[...]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
Gutierrez, R. ; Díaz García, Elena ; Naaman, R. ; Cuniberti, G. | American Physical Society | 2012-05-11texto impreso
Gutierrez, R. ; Díaz García, Elena ; Naaman,, R. ; Cuniberti, G. | American Physical Society | 2012-02-16Highly spin-selective transport of electrons through a helically shaped electrostatic potential is demonstrated in the frame of a minimal model approach. The effect is significant even for weak spin-orbit coupling. Two main factors determine the[...]
