Scientists Use Laser Pulses for High-Frequency Strain Engineering

Researchers have successfully utilized ultrafast laser pulses to induce terahertz frequency vibrations in platinum-copper superlattices. This breakthrough in strain engineering demonstrates that electron pressure, rather than thermal expansion, drives the atomic lattice movement. Advancing the field of thermoacoustic metamaterials, this discovery paves the way for ultrafast, next-generation computing and spintronics, offering efficient mechanisms to manipulate nanoscale material properties.