Speaker: Prof. Narcis Avarvari

Chiral electroactive materials [1] are gaining continuous interest in the frame of chirality related physical phenomena such as the electrical magnetochiral anisotropy (eMChA) effect or the chirality induced spin selectivity (CISS) effect. eMChA effect expresses the dependence of the resistance of a chiral conductor on its handedness and on both the relative orientation of the electrical current and the applied magnetic field [2], whereas the CISS effect refers to the selective transmission of a preferential electron spin orientation through a chiral material [3]. Similarities and differences between the two effects have been recently discussed [4]. In this contribution we will discuss evidences for the occurrence of the eMChA and CISS effects in chiral tetrathiafulvalenes (TTF) [5-7], in thiadiazole-helicenes [8], and in [6]helicene-bis(thiol) through single molecule break junction [9]. In the latter, the concomitant observation of the CISS and the eMChA effects was possible.