Ultrafast quenching of the exchange interaction in a mott-insulator

Mentink, J.; Eckstein, M.

doi:10.1007/978-3-319-07743-7_39

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Ultrafast quenching of the exchange interaction in a mott-insulator

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Mentink, J.
Center for Free-Electron Laser Science (CFEL);
Theory of Correlated Systems out of Equilibrium, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons140407

Eckstein, M.
Center for Free-Electron Laser Science (CFEL);
Theory of Correlated Systems out of Equilibrium, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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https://dx.doi.org/10.1007/978-3-319-07743-7_39
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引用

Mentink, J., & Eckstein, M. (2015). Ultrafast quenching of the exchange interaction in a mott-insulator. Springer Proceedings in Physics, 159, 123-125.

引用: https://hdl.handle.net/11858/00-001M-0000-0024-B58B-C

要旨

The exchange interaction determines the ordering of microscopic spins in magnetic materials. While often considered static, here we report calculations of time-dependent nonequilibrium exchange interactions in a Mott insulator. The results suggest that free charge carriers created by (photo) excitation can cause an ultrafast quench of the exchange interaction.