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Soft x-rays induce femtosecond solid-to-solid phase transition
- Publication Year :
- 2016
-
Abstract
- Soft x-rays were applied to induce graphitization of diamond through a non-thermal solid-to-solid phase transition. This process was observed within poly-crystalline diamond with a time-resolved experiment using ultrashort soft x-ray pulses of duration 52.5 fs and cross correlated by an optical pulse of duration 32.8 fs. This scheme enabled for the first time the measurement of a phase transition on a timescale of ~150 fs. Excellent agreement between experiment and theoretical predictions was found, using a dedicated code that followed the non-equilibrium evolution of the irradiated diamond including all transient electronic and structural changes. These observations confirm that soft x-rays can induce a non-thermal ultrafast solid-to-solid phase transition on a hundred femtosecond timescale.<br />Comment: 27 pages, 17 figures (includes supplementary materials)
- Subjects :
- Physics - Atomic Physics
Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1612.06698
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.hedp.2017.06.001