Significant Volume Expansion as a Precursor to Ablation and Micropattern Formation in Phase Change Material Induced by Intense Terahertz Pulses.

ABSTRACT: With rapid advances occurring in terahertz (THz) radiation generation techniques, the interaction between matter and intense THz fields has become an important research topic. Among different types of THz radiation sources, the free electron laser (FEL) is a promising experimental tool that is expected to pave the way for new forms of material processing, control of phase transitions, and serve as a test bench for extreme operating conditions in high-speed small-size electrical and magnetic devices through the exploitation of strong THz electrical and magnetic fields without the presence of interband electronic excitation. In the current work, we irradiated Ge₂Sb₂Te₅ phase change memory material with intense THz pulse trains from an FEL and observed THz-ind

SUBMITTER: Makino K 

PROVIDER: S-EPMC5811531 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature