Baba, Yuriko CaterinaDomínguez-Adame Acosta, FranciscoPlatero, GloriaMolina, Rafael A.2023-06-172023-06-172021-021367-263010.1088/1367-2630/abda56https://hdl.handle.net/20.500.14352/7880©2021 IOP Publishing LTD We acknowledge financial support through Spanish grants PGC2018-094180-B-I00 (MCIU/AEI/FEDER, EU), MAT2016-75955, MAT2017-86717-P and PID2019-106820RB-C21 (MINECO/FEDER, EU), CAM/FEDER Project No. S2018/TCS-4342 (QUITEMAD-CM) and CSIC Research Platform PTI-001. G P also acknowledges support from the DFG within SBF 1277 and from the 'UA: Matematica Aplicada a la Teoria de la Materia Condensada' with the Carlos III University.We study the effect of the Rashba spin-orbit coupling on the Fermi arcs of topological Dirac semimetals. The Rashba coupling is induced by breaking the inversion symmetry at the surface. Remarkably, this coupling could be enhanced by the interaction with the substrate and controlled by an external electric field. We study analytically and numerically the rotation of the spin of the surface states as a function of the electron's momentum and the coupling strength. Furthermore, a detailed analysis of the spin-dependent two-terminal conductance is presented in the clean limit and with the addition of a random distribution of impurities. Depending on the magnitude of the quadratic terms in the Hamiltonian, the spin-flip conductance may become dominant, thus showing the potential of the system for spintronic applications, since the effect is robust even in the presence of disorder.engAtribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/journal articlehttp://dx.doi.org/10.1088/1367-2630/abda56https://iopscience.iop.orgopen access538.9Rashba couplingDirac semimetalSpin switcherSpintronicsTopological semimetalsFísica de materialesFísica del estado sólido2211 Física del Estado Sólido