DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Phase transition lowering in dynamically compressed silicon

Journal Article · · Nature Physics
ORCiD logo [1];  [2];  [3];  [4]; ORCiD logo [2];  [5];  [4]; ORCiD logo [3];  [4];  [6];  [6];  [3];  [7];  [8];  [7];  [4];  [3];  [9];  [10];  [11]
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); SLAC National Accelerator Lab., Menlo Park, CA (United States); European XFEL GmbH, Hamburg (Germany)
  2. IMPMC, UPMC, MNHN, IRD, Paris (France)
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); European XFEL GmbH, Hamburg (Germany)
  6. Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany)
  7. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  8. Rutherford Appleton Lab., Didcot (United Kingdom)
  9. European XFEL GmbH, Schenefeld (Germany)
  10. Univ. of Oxford, Oxford (United Kingdom)
  11. Univ. of York, York (United Kingdom)

Silicon, being one of the most abundant elements in nature, attracts wide-ranging scientific and technological interest. Specifically, in its elemental form, crystals of remarkable purity can be produced. One may assume that this would lead to silicon being well understood, and indeed, this is the case for many ambient properties, as well as for higher-pressure behaviour under quasi-static loading. However, despite many decades of study, a detailed understanding of the response of silicon to rapid compression—such as that experienced under shock impact—remains elusive. Here, we combine a novel free-electron laser-based X-ray diffraction geometry with laser-driven compression to elucidate the importance of shear generated during shock compression on the occurrence of phase transitions. We observe lowering of the hydrostatic phase boundary in elemental silicon, an ideal model system for investigating high-strength materials, analogous to planetary constituents. Furthermore, we unambiguously determine the onset of melting above 14 GPa, previously ascribed to a solid–solid phase transition, undetectable in the now conventional shocked diffraction geometry; transitions to the liquid state are expected to be ubiquitous in all systems at sufficiently high pressures and temperatures.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); Engineering and Physical Sciences Research Council (EPSRC); French Agence Nationale de la Recherche (ANR); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
AC02-76SF00515; AC52-07NA27344; EP/J017256/1; ANR IRONFEL 12-PDOC-0011
OSTI ID:
1483786
Alternate ID(s):
OSTI ID: 1874865
Report Number(s):
LLNL-JRNL-830710; PII: 290
Journal Information:
Nature Physics, Vol. 15; ISSN 1745-2473
Publisher:
Nature Publishing Group (NPG)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

References (42)

Axial Yield Strengths and Two Successive Phase Transition Stresses for Crystalline Silicon journal April 1971
Polymorphism of Iron at High Pressure journal March 1956
Molecular dynamics simulations of shock-compressed single-crystal silicon journal February 2014
New high-pressure phase of Si journal April 1993
Real-Time Examination of Atomistic Mechanisms during Shock-Induced Structural Transformation in Silicon journal July 2016
Erratum: Ultrafast visualization of crystallization and grain growth in shock-compressed SiO2 journal October 2015
Pressure and shear-induced amorphization of silicon journal December 2015
Structural phase transitions in Si and Ge under pressures up to 50 GPa journal June 1984
High-pressure x-ray scattering and computer simulation studies of density-induced polyamorphism in silicon journal June 2007
Nanosecond formation of diamond and lonsdaleite by shock compression of graphite journal March 2016
Structure and properties of silicon XII: A complex tetrahedrally bonded phase journal August 1995
Ultrabright X-ray laser scattering for dynamic warm dense matter physics journal March 2015
Ultrafast visualization of crystallization and grain growth in shock-compressed SiO2 journal September 2015
Reduction of Shear Strength and Phase-Transition in Shock-Loaded Silicon journal June 1982
X-ray absorption spectroscopy of iron at multimegabar pressures in laser shock experiments journal July 2015
Ab initio calculation of the shock Hugoniot of bulk silicon journal March 2016
Pressure dependence of the Imma phase of silicon journal July 1994
Experimental evidence for a phase transition in magnesium oxide at exoplanet pressures journal September 2013
Orientation and rate dependence in high strain-rate compression of single-crystal silicon journal December 2012
Crystal Structures at High Pressures of Metallic Modifications of Silicon and Germanium journal February 1963
X-ray diffraction of molybdenum under shock compression to 450 GPa journal November 2015
Time-dependence of the alpha to epsilon phase transformation in iron journal December 2013
hcp to fcc transition in silicon at 78 GPa and studies to 100 GPa journal February 1987
Powder diffraction from solids in the terapascal regime journal November 2012
Pressure-Induced Structural Change of Liquid Silicon journal June 2002
Melting temperature of diamond at ultrahigh pressure journal November 2009
Two New Forms of Silicon journal January 1963
X-Ray Diffraction of Solid Tin to 1.2 TPa journal August 2015
Inelastic response of silicon to shock compression journal April 2016
Electrical measurements in silicon under shock‐wave compression journal December 1972
Ab initio calculation of the shock Hugoniot of bulk silicon text January 2016
Theoretical study of high-pressure orthorhombic silicon journal December 1993
Ab initio calculation of the shock Hugoniot of bulk silicon text January 2015
Static compression of silicon in the [100] and in the [111] directions journal February 1980
Crystal Structure of the High-Pressure Phase Silicon VI journal February 1999
Supersonic Dislocation Bursts in Silicon journal June 2016
Inelastic deformation and phase transformation of shock compressed silicon single crystals journal November 2007
Thermodynamics of uniaxial phase transition: Ab initio study of the diamond-to-β-tin transition in Si and Ge journal March 2001
Kinoform phase plates for focal plane irradiance profile control journal January 1994
Ultrafast Dynamic Compression Technique to Study the Kinetics of Phase Transformations in Bismuth journal August 2008
Two New Forms of Silicon journal January 1963
Whole powder pattern decomposition methods and applications: A retrospection journal December 2005

Cited By (8)

Quasi-hydrostatic equation of state of silicon up to 1 megabar at ambient temperature text January 2019
Quasi-hydrostatic equation of state of silicon up to 1 megabar at ambient temperature journal October 2019
Direct imaging of ultrafast lattice dynamics text January 2019
Reversible Phase Transition of Porous Coordination Polymers journal January 2020
Direct imaging of ultrafast lattice dynamics journal March 2019
FORTE – a multipurpose high-vacuum diffractometer for tender X-ray diffraction and spectroscopy at the SIRIUS beamline of Synchrotron SOLEIL journal May 2019
Direct imaging of ultrafast lattice dynamics text January 2019
Quasi-hydrostatic equation of state of silicon up to 1 megabar at ambient temperature text January 2019

Figures / Tables (4)