Vacuum ultraviolet second-harmonic generation in NH4B4O6F crystal
Eaton, D. F. Nonlinear optical materials. Science 253, 281–287 (1991). Article ADS CAS PubMed Google Scholar Meng, J.…
Critical social media posts linked to retractions of scientific papers
Credit: Beata Zawrzel/NurPhoto via Getty Posts on social-media platform X that are critical of scientific research can act…
Alternative explanation for how celestial objects generate large-scale magnetic fields
RESEARCH BRIEFINGS 28 January 2026 Numerical simulations provide a mechanism that explains how celestial objects such as stars…
Ferromagnet-like binary switching of a Stoner–Wohlfarth antiferromagnet
The response of magnetization to external stimuli has drawn attention for more than a century, providing fundamental insights…
Lasing of a cavity-based X-ray source
Shortly after the free-electron laser (FEL) concept was proposed in the 1970s11, the first FEL oscillator was developed12…
Accurate determination of the 3D atomic structure of amorphous materials
Nomura, K. et al. Room-temperature fabrication of transparent flexible thin-film transistors using amorphous oxide semiconductors. Nature 432, 488–492…
Low-power integrated optical amplification through second-harmonic resonance
Desurvire, E. Erbium-Doped Fiber Amplifiers: Principles and Applications (Wiley, 1994). Tse, M. et al. Quantum-enhanced advanced LIGO detectors…
Bandwidth-tuned Mott transition and superconductivity in moiré WSe2
Anderson, P. W. The resonating valence bond state in La2CuO4 and superconductivity. Science 235, 1196–1198 (1987). Article ADS …
Constraints on axion dark matter by distributed intercity quantum sensors
Bertone, G. & Hooper, D. History of dark matter. Rev. Mod. Phys. 90, 045002 (2018). Article CAS ADS …
Optical control over topological Chern number in moiré materials
Wang, Y. H., Steinberg, H., Jarillo-Herrero, P. & Gedik, N. Observation of Floquet-Bloch states on the surface of…
Observation of a superfluid-to-insulator transition of bilayer excitons
Anderson, M. H., Ensher, J. R., Matthews, M. R., Wieman, C. E. & Cornell, E. A. Observation of…
Optical control of integer and fractional Chern insulators
Oka, T. & Aoki, H. Photovoltaic Hall effect in graphene. Phys. Rev. B 79, 081406 (2009). Article ADS …