Photoexcitation flips 2D moiré devices from metals to insulators in ultrafast test
Quantum materials, materials with properties that are governed by the laws of quantum mechanics describing many-body interactions, have proved promising for the development of various advanced technologies. Many of these materials undergo so-called phase transitions, switching between different physical states that alter how electrons flow through them. Some previous studies have demonstrated the transition from insulating states to metallic states in quantum materials, via a process called photoexcitation (i.e., the excitation of electrons using light).
- ▪Quantum materials, materials with properties that are governed by the laws of quantum mechanics describing many-body interactions, have proved promising for the development of various advanced technologies.
- ▪Many of these materials undergo so-called phase transitions, switching between different physical states that alter how electrons flow through them.
- ▪Some previous studies have demonstrated the transition from insulating states to metallic states in quantum materials, via a process called photoexcitation (i.e., the excitation of electrons using light).
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June 4, 2026 feature Photoexcitation flips 2D moiré devices from metals to insulators in ultrafast test by Ingrid Fadelli, Phys.org Ingrid Fadelli Author Meet our staff & contributors Learn about our editorial standards edited by Sadie Harley, reviewed by Robert Egan Sadie Harley Scientific Editor Meet our editorial team Behind our editorial process Robert Egan Associate Editor Meet our editorial team Behind our editorial process Editors' notes This article has been reviewed according to Science X's editorial process and policies.
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