RT Journal Article
T1 Spin-dependent polaron transport in helical molecules
A1 Barroso, M.
A1 Balduque, J.
A1 Domínguez-Adame Acosta, Francisco
A1 Díaz García, Elena
AB We study thermal effects on spin transport along a deformable helical molecule in the presence of chiral-induced spin-orbit coupling. The carrier-lattice interaction is modeled by the well-established Peyrard-Bishop-Holstein model within the Langevin approach to include temperature as a stochastic noise. The carrier-lattice interaction causes the occurrence of polaron states in the molecule. We demonstrate the existence of two well-differentiated spin-dependent polaron transport regimes as a function of temperature. In the low-temperature regime, the spatial separation of the two spin-dependent polaron wave-packets results in a nonzero spin current. On the contrary, the spin current becomes negligible if the temperature of the system is high enough. Finally, we characterize this transition and estimate the critical temperature at which it takes place.
PB American Institute of Physics
SN 0003-6951
YR 2022
FD 2022-10-07
LK https://hdl.handle.net/20.500.14352/72775
UL https://hdl.handle.net/20.500.14352/72775
LA eng
NO ©2022 The Author(s)The authors thank R. P. A. Lima for helpful discussions. This research has been supported by Ministerio de Ciencia e Innovacion (Grant No. PID2019-106820RB-C21).
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 7 abr 2025