Ultrafast engineering of the magnetic Hamiltonian in frustrated magnets
ORAL
Abstract
We deploy ultrafast laser pulses to engineer the magnetic ground state of an iridium-based frustrated quantum magnet [1]. By resonantly pumping an IR active phonon, we engineer long-lasting changes to its magnetic Hamiltonian, as demonstrated by our THz spectroscopy measurements. Our results open new pathways to controlling complex magnetic orders in strong spin-orbit coupled frustrated spin degrees of freedom [2,3].
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Publication: [1] Q Wang, A de la Torre, et al. arXiv:2407.17559 (2024)<br>[2] A De la Torre, B Zager, et al. Nature Communications 14 (1), 5018 (2023)<br>[3] E Mercer, L Schmidt, A De la Torre, in preparation
Presenters
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Alberto de la Torre
Northeastern University
Authors
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Alberto de la Torre
Northeastern University
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Edward Mercer
Northeastern University
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Liam Schmidt
Northeastern University
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Qiaochu Wang
Brown University
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Kemp Plumb
Brown University
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Thales de Oliveira
HZDR
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Jan-Christoph Deinert
HZDR