Berlin 2024 – scientific programme
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MA: Fachverband Magnetismus
MA 46: Poster II
MA 46.81: Poster
Thursday, March 21, 2024, 15:00–18:00, Poster C
Chiral Induced Spin Selectivity Effect at Helical Molecule-metal Interfaces — •Ashish Moharana1, Hao Wu2, Shuanglong Wang2, Fabian Kammerbauer1, Maria-Andromachi Syskaki1, Zijie Qiu2,3, Tomasz Marszalek2, and Angela Wittmann1 — 1Institut für Physik, Johannes-Gutenberg-Universität Mainz, 55099 Mainz, Germany — 2Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany — 3School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 518172, P.R. China
The observation of spin-dependent transmission of electrons through chiral molecules has led to the discovery of chiral-induced spin selectivity (CISS). The high efficiency of the spin filtering effect in chiral molecules has recently gained significant interest due to the high potential for novel hybrid molecule magnetic spintronics applications. However, the fundamental mechanisms underlying the CISS effect at the molecule-metal interface remain not entirely understood. In our work, we explore spintronic phenomena at hybrid chiral molecule magnetic interfaces to elucidate the underlying mechanisms of the chiral-induced spin selectivity effect. For this, we investigate the spin-to-charge conversion efficiency in chiral molecule/ metallic thin film heterostructures. This study focuses on the impact of the adsorption of chiral molecules on the spin-to-charge conversion at the molecule-metal hybrid interface. Quantifying the impact as a function of the molecular structure of the chiral molecules will reveal the role of the structural design in the spin-filtering effect.