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Issue 14, 2019
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Spin trapping and flipping in FeCO through relativistic electron dynamics

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Abstract

Transition metal compounds are very versatile, and their characteristics can differ profoundly depending on their electronic structure. Compounds in which a spin transition from a low-spin to a high-spin state can be achieved through means of an optical excitation are particularly intriguing, as a controlled spin–flip opens promising avenues in areas such as sensing, information technology, molecular switches and energy technology. The fundamental mechanisms in spin crossover and spin transitions remain unanswered, due to the complexity of electronic structure and interplay of relativistic effects. Presented here is a new approach that allows the first direct study of spin flip dynamics through a mapping of spin-mixed to spin-pure states. The method is applied to FeCO and addresses the spin–flip dynamics during a spin transition. Wave packets that combine different spin states are generated through optical excitation and relevant mechanisms in optically triggered spin transitions are discussed.

Graphical abstract: Spin trapping and flipping in FeCO through relativistic electron dynamics

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Publication details

The article was received on 22 Oct 2018, accepted on 18 Dec 2018 and first published on 19 Dec 2018


Article type: Paper
DOI: 10.1039/C8CP06583G
Citation: Phys. Chem. Chem. Phys., 2019,21, 7265-7271

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    Spin trapping and flipping in FeCO through relativistic electron dynamics

    I. S. Ulusoy and A. K. Wilson, Phys. Chem. Chem. Phys., 2019, 21, 7265
    DOI: 10.1039/C8CP06583G

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