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cond-mat.mtrl-sci2026
Imaging the Néel Vector in Two-Dimensional Antiferromagnets using Antisymmetric Compton Scattering
Wuxuan Li, Zhuocheng Lu, Jingshan Qi +2
We demonstrate that antisymmetric Compton scattering can detect both the switching and the continuous rotation of the Néel vector in two-dimensional (2D) antiferromagnets. By prob…
cond-mat.mtrl-sci2025
Pure momentum-shift bulk photovoltaic effect in ferroelectric flat-band Mott insulators
Zhuocheng Lu, Zhihao Gong, Jingshan Qi +2
The shift current photovoltaic effect is conventionally understood as the real-space displacement of a wave packet induced by photoexcitation. However, this interpretation becomes…
cond-mat.mtrl-sci2025
Quantum Geometric Origin of Strain-Induced Ferroelectric Phase Transitions
Jiaming Hu, Ziye Zhu, Yubo Yuan +3
Strain-regulated ferroelectric (FE) materials have long attracted significant attention due to their diverse applications. While soft-phonon theory and the (pseudo) Jahn-Teller eff…