Journal
JOURNAL OF APPLIED PHYSICS
Volume 109, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3599884
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Funding
- U.S. Department of Energy Office of Inertial Confinement Fusion [DE-FC52-08NA28302]
- University of Rochester
- New York State Energy Research and Development Authority
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We report the highest pressure under which a transparent insulator has been observed. The refractive index of ramp-compressed lithium fluoride (LiF) is measured up to a pressure of 800 GPa and is observed to maintain its linear dependence on density. An effective single-oscillator model infers that the bandgap monotonically closes with increasing density, indicating that metallization of LiF should occur at pressures above 4000 GPa, and that LiF should remain transparent at extremely high pressures. (C) 2011 American Institute of Physics. [doi: 10.1063/ 1.3599884]
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