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Articles by In Hyeok
Condensed Matter > Materials Science
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Condensed Matter > Other Condensed Matter
Magnetic moments carried by rotating ionic motion in crystals are becoming recognized as an important contribution to magnetism, angular momentum transport, and optical activity. However, efficient approaches to their dynamical control are lacking. Here, we report THz-driven generation and optical detection of quantum ionic magnetism in quantum paraelectric SrTiO3.
Condensed Matter > Materials Science
[Submitted on 8 Sep 2026 ( v1 ), last revised 23 Sep 2026 (this version, v2)] Title:Light-Driven Ultrafast Control of Time-Reversal Symmetry in SrTiO3 View a PDF of the paper titled Light-Driven Ultrafast Control of Time-Reversal Symmetry in SrTiO3, by In Hyeok Choi and 4 other authors View PDF Abstract:Light-driven control of material symmetry enables the engineering of phenomena forbidden in equilibrium.
Condensed Matter > Materials Science
[Submitted on 28 Sep 2025 ( v1 ), last revised 1 Oct 2026 (this version, v2)] Title:Strain-induced Dynamic Spin-Phonon Coupling in Epitaxial RuO2 Films View a PDF of the paper titled Strain-induced Dynamic Spin-Phonon Coupling in Epitaxial RuO2 Films, by In Hyeok Choi and 8 other authors View PDF Abstract:Magnetic order parameters in altermagnets can couple to quantized lattice vibration via both piezomagnetic and magnetoelastic effects, leading to the renormalization of phonon dispersion.
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