Ultrafast electron diffraction: Visualizing dynamic states of matter

D Filippetto, P Musumeci, RK Li, BJ Siwick… - Reviews of Modern …, 2022 - APS
Since the discovery of electron-wave duality, electron scattering instrumentation has
developed into a powerful array of techniques for revealing the atomic structure of matter …

Extreme ultraviolet transient gratings

F Bencivenga, F Capotondi, L Foglia… - … in Physics: X, 2023 - Taylor & Francis
The recent construction of free electron lasers allows extending laboratory-based laser
experiments to shorter wavelengths, accessing wavevectors typical of nanoscale dynamics …

Spin-mediated shear oscillators in a van der Waals antiferromagnet

A Zong, Q Zhang, F Zhou, Y Su, K Hwangbo, X Shen… - Nature, 2023 - nature.com
Understanding how microscopic spin configuration gives rise to exotic properties at the
macroscopic length scale has long been pursued in magnetic materials,,,–. One seminal …

Chiral phonons in quartz probed by X-rays

H Ueda, M García-Fernández, S Agrestini, CP Romao… - Nature, 2023 - nature.com
The concept of chirality is of great relevance in nature, from chiral molecules such as sugar
to parity transformations in particle physics. In condensed matter physics, recent studies …

Optically induced ultrafast magnetization switching in ferromagnetic spin valves

J Igarashi, W Zhang, Q Remy, E Díaz, JX Lin… - Nature Materials, 2023 - nature.com
The discovery of spin-transfer torque (STT) enabled the control of the magnetization
direction in magnetic devices in nanoseconds using an electrical current. Ultrashort optical …

Angstrom surface on copper induced by novel green chemical mechanical polishing using ceria and silica composite abrasives

D Liu, Z Zhang, H Zhou, X Deng, C Shi, F Meng… - Applied Surface …, 2023 - Elsevier
Toxic and corrosive slurries are widely employed in traditional chemical mechanical
polishing (CMP), leading to the pollution to the environment. Consequently, it is a challenge …

Chirality selective magnon-phonon hybridization and magnon-induced chiral phonons in a layered zigzag antiferromagnet

J Cui, EV Boström, M Ozerov, F Wu, Q Jiang… - Nature …, 2023 - nature.com
Abstract Two-dimensional (2D) magnetic systems possess versatile magnetic order and can
host tunable magnons carrying spin angular momenta. Recent advances show angular …

Large effective magnetic fields from chiral phonons in rare-earth halides

J Luo, T Lin, J Zhang, X Chen, ER Blackert, R Xu… - Science, 2023 - science.org
Time-reversal symmetry (TRS) is pivotal for materials' optical, magnetic, topological, and
transport properties. Chiral phonons, characterized by atoms rotating unidirectionally around …

Fluctuation-enhanced phonon magnetic moments in a polar antiferromagnet

F Wu, S Bao, J Zhou, Y Wang, J Sun, J Wen, Y Wan… - Nature Physics, 2023 - nature.com
Phonons are the quasiparticles of collective lattice excitations that may carry finite angular
momenta, but commonly exhibit negligible magnetic moments. A large phonon magnetic …

Laser-induced terahertz spin transport in magnetic nanostructures arises from the same force as ultrafast demagnetization

R Rouzegar, L Brandt, L Nádvorník, DA Reiss… - Physical Review B, 2022 - APS
Laser-induced terahertz spin transport (TST) and ultrafast demagnetization (UDM) are
central but so far disconnected phenomena in femtomagnetism and terahertz spintronics …