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Title: X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation in Ni-Pt multilayers [X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation]

An in situ optical pump and x-ray probe technique has been utilized to study photoinitiated solid-state diffusion in a Ni-Pt multilayer system. Hard x-ray diffraction has been used to follow the systematic growth of the NiPt alloy as a function of laser intensity and total energy deposited. It is observed that new phase growth can be driven in as little as one laser pulse, and that repeated photoexcitation can completely convert the entire multilayer structure into a single metallic alloy. In conclusion, the data suggest that lattice strain relaxation takes place prior to atomic diffusion and the formation of a NiPt alloy.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. Univ. of Delaware, Newark, DE (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 6; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC); National Science Foundation (NSF); National Institutes of Health (NIH), National Institute of General Medical Sciences
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1372088
Alternate Identifier(s):
OSTI ID: 1342442

Kelly, B. G., Loether, A., Unruh, K. M., DeCamp, M. F., and DiChiara, A. D.. X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation in Ni-Pt multilayers [X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation]. United States: N. p., Web. doi:10.1103/PhysRevB.95.064301.
Kelly, B. G., Loether, A., Unruh, K. M., DeCamp, M. F., & DiChiara, A. D.. X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation in Ni-Pt multilayers [X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation]. United States. doi:10.1103/PhysRevB.95.064301.
Kelly, B. G., Loether, A., Unruh, K. M., DeCamp, M. F., and DiChiara, A. D.. 2017. "X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation in Ni-Pt multilayers [X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation]". United States. doi:10.1103/PhysRevB.95.064301. https://www.osti.gov/servlets/purl/1372088.
@article{osti_1372088,
title = {X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation in Ni-Pt multilayers [X-ray diffraction study of laser-driven solid-state diffusional mixing and new phase formation]},
author = {Kelly, B. G. and Loether, A. and Unruh, K. M. and DeCamp, M. F. and DiChiara, A. D.},
abstractNote = {An in situ optical pump and x-ray probe technique has been utilized to study photoinitiated solid-state diffusion in a Ni-Pt multilayer system. Hard x-ray diffraction has been used to follow the systematic growth of the NiPt alloy as a function of laser intensity and total energy deposited. It is observed that new phase growth can be driven in as little as one laser pulse, and that repeated photoexcitation can completely convert the entire multilayer structure into a single metallic alloy. In conclusion, the data suggest that lattice strain relaxation takes place prior to atomic diffusion and the formation of a NiPt alloy.},
doi = {10.1103/PhysRevB.95.064301},
journal = {Physical Review B},
number = 6,
volume = 95,
place = {United States},
year = {2017},
month = {2}
}