Angela Wittman
Johannes Gutenberg University Mainz


Angela Wittmann is a Junior Professor in Experimental Condensed Matter Physics at Johannes Gutenberg University Mainz. Her research focuses on electron spin dynamics in unconventional material systems, particularly at the interfaces between molecules and magnetic thin films. Angela obtained her Ph.D. in 2019 from the University of Cambridge, working on organic semiconductors under Prof. Sirringhaus. She then conducted research on antiferromagnetic films at MIT with Prof. Beach's group before starting her research group in Mainz in 2021. Her current work explores spin phenomena and emergent properties at the molecular-magnetic interface, with potential applications in spintronics, quantum computing, and advanced materials.

Abstract: Chiral-induced Unidirectional Spin-to-charge conversion

Angela Wittman

Johannes Gutenberg University Mainz

The chiral-induced spin selectivity (CISS) effect has recently gained significant attention in the field of spintronics. The remarkably high polarization efficiency of chiral molecules via the CISS effect paves the path toward novel, sustainable hybrid chiral molecule magnetic applications. While research has predominantly focused on transport properties so far, 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 interfacial spin-orbit coupling in chiral molecule/metal thin film heterostructures by probing the chirality and spin-dependent spin-to-charge conversion. Our findings validate the central role of spin angular momentum for the CISS effect, paving the path toward the functionalization of hybrid molecule-metal interfaces via chirality.


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