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Open Access Optical Chiral Induced Spin Selectivity XMCD Study

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The chiral induced spin selectivity (CISS) effect in which selective transport of electron spins through helical chiral molecules occurs, has attracted a lot of attention in recent years. This effect was used to magnetize ferromagnetic (FM) samples by utilizing adsorbed chiral molecules. The electron transfer through the molecules was generated optically or electrically. In the optical configuration, circularly polarized light induced efficient magnetization by spin torque transfer (STT), using a hybrid of quantum dots (QDs) and chiral molecule self-assembled monolayer (SAM). Here, we use X-ray magnetic chiral dichroism (XMCD) spectroscopy in order to probe the optically induced magnetization on thin FM films. The results show differences in the FM magnetization depending on the optical circular polarization, matching previous non-local Hall probe measurements.

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Keywords: CHIRAL INDUCED SPIN SELECTIVITY; MAGNETIC CHIRAL DICHROISM; QUANTUM DOTS; SPINTRONICS

Document Type: Research Article

Affiliations: 1: Applied Physics Department and the Center for Nano-Science and Nano-Technology The Hebrew University of Jerusalem Jerusalem 9190401 Israel 2: Stanford Synchrotron Radiation Laboratory Stanford University, P.O. Box 20450, Menlo Park California 94025, USA 3: Applied Physics Department and the Center for Nano-Science and Nano-Technology The Hebrew University of Jerusalem Jerusalem 9190401 Israel;, Email: [email protected]

Publication date: June 1, 2018

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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