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Title: Subnanosecond phase transition dynamics in laser-shocked iron

Abstract

Iron is one of the most studied chemical elements due to its sociotechnological and planetary importance; hence, understanding its structural transition dynamics is of vital interest. By combining a short pulse optical laser and an ultrashort free electron laser pulse, we have observed the subnanosecond structural dynamics of iron from high-quality x-ray diffraction data measured at 50-ps intervals up to 2500 ps. We unequivocally identify a three-wave structure during the initial compression and a two-wave structure during the decaying shock, involving all of the known structural types of iron (α-, γ-, and ε-phase). In the final stage, negative lattice pressures are generated by the propagation of rarefaction waves, leading to the formation of expanded phases and the recovery of γ-phase. Our observations demonstrate the unique capability of measuring the atomistic evolution during the entire lattice compression and release processes at unprecedented time and strain rate.

Authors:
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  1. Yonsei Univ., Seoul (Korea, Republic of)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Pohang Accelerator Lab. (PAL) (Korea, Republic of)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Korea Polar Research Inst., Incheon (Korea, Republic of)
  7. Center for High Pressure Science and Technology Advanced Research, Shanghai (China)
  8. Arizona State Univ., Tempe, AZ (United States)
  9. Univ. of South Carolina, Columbia, SC (United States)
  10. Center for High Pressure Science and Technology Advanced Research, Shanghai (China); Osaka Univ. (Japan)
  11. Yonsei Univ., Seoul (Korea, Republic of); Center for High Pressure Science and Technology Advanced Research, Shanghai (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA); Korean Ministry of Science and ICT (MSIP); Korea Polar Research Institute
OSTI Identifier:
1635678
Alternate Identifier(s):
OSTI ID: 1638045; OSTI ID: 1783916
Report Number(s):
LLNL-JRNL-757410
Journal ID: ISSN 2375-2548
Grant/Contract Number:  
AC02-76SF00515; AC02-06CH11357; AC52-07NA27344; NRF-2018R1A3B1052042; NRF-2016K1A4A3914691; NRF-2016K1A3A7A09005244; PE20200
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 23; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Physics - Solid state physics

Citation Formats

Hwang, H., Galtier, E., Cynn, H., Eom, I., Chun, S. H., Bang, Y., Hwang, G. C., Choi, J., Kim, T., Kong, M., Kwon, S., Kang, K., Lee, H. J., Park, C., Lee, J. I., Lee, Yongmoon, Yang, W., Shim, S. -H., Vogt, T., Kim, Sangsoo, Park, J., Kim, Sunam, Nam, D., Lee, J. H., Hyun, H., Kim, M., Koo, T. -Y., Kao, C. -C., Sekine, T., and Lee, Yongjae. Subnanosecond phase transition dynamics in laser-shocked iron. United States: N. p., 2020. Web. https://doi.org/10.1126/sciadv.aaz5132.
Hwang, H., Galtier, E., Cynn, H., Eom, I., Chun, S. H., Bang, Y., Hwang, G. C., Choi, J., Kim, T., Kong, M., Kwon, S., Kang, K., Lee, H. J., Park, C., Lee, J. I., Lee, Yongmoon, Yang, W., Shim, S. -H., Vogt, T., Kim, Sangsoo, Park, J., Kim, Sunam, Nam, D., Lee, J. H., Hyun, H., Kim, M., Koo, T. -Y., Kao, C. -C., Sekine, T., & Lee, Yongjae. Subnanosecond phase transition dynamics in laser-shocked iron. United States. https://doi.org/10.1126/sciadv.aaz5132
Hwang, H., Galtier, E., Cynn, H., Eom, I., Chun, S. H., Bang, Y., Hwang, G. C., Choi, J., Kim, T., Kong, M., Kwon, S., Kang, K., Lee, H. J., Park, C., Lee, J. I., Lee, Yongmoon, Yang, W., Shim, S. -H., Vogt, T., Kim, Sangsoo, Park, J., Kim, Sunam, Nam, D., Lee, J. H., Hyun, H., Kim, M., Koo, T. -Y., Kao, C. -C., Sekine, T., and Lee, Yongjae. Fri . "Subnanosecond phase transition dynamics in laser-shocked iron". United States. https://doi.org/10.1126/sciadv.aaz5132. https://www.osti.gov/servlets/purl/1635678.
@article{osti_1635678,
title = {Subnanosecond phase transition dynamics in laser-shocked iron},
author = {Hwang, H. and Galtier, E. and Cynn, H. and Eom, I. and Chun, S. H. and Bang, Y. and Hwang, G. C. and Choi, J. and Kim, T. and Kong, M. and Kwon, S. and Kang, K. and Lee, H. J. and Park, C. and Lee, J. I. and Lee, Yongmoon and Yang, W. and Shim, S. -H. and Vogt, T. and Kim, Sangsoo and Park, J. and Kim, Sunam and Nam, D. and Lee, J. H. and Hyun, H. and Kim, M. and Koo, T. -Y. and Kao, C. -C. and Sekine, T. and Lee, Yongjae},
abstractNote = {Iron is one of the most studied chemical elements due to its sociotechnological and planetary importance; hence, understanding its structural transition dynamics is of vital interest. By combining a short pulse optical laser and an ultrashort free electron laser pulse, we have observed the subnanosecond structural dynamics of iron from high-quality x-ray diffraction data measured at 50-ps intervals up to 2500 ps. We unequivocally identify a three-wave structure during the initial compression and a two-wave structure during the decaying shock, involving all of the known structural types of iron (α-, γ-, and ε-phase). In the final stage, negative lattice pressures are generated by the propagation of rarefaction waves, leading to the formation of expanded phases and the recovery of γ-phase. Our observations demonstrate the unique capability of measuring the atomistic evolution during the entire lattice compression and release processes at unprecedented time and strain rate.},
doi = {10.1126/sciadv.aaz5132},
journal = {Science Advances},
number = 23,
volume = 6,
place = {United States},
year = {2020},
month = {6}
}

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