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High-pressure amorphous nitrogen

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Original languageEnglish
Article number052103
Number of pages4
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume64
Issue number5
StatePublished - 1 Aug 2001

Abstract

The phase diagram and stability limits of diatomic solid nitrogen have been explored in a wide pressure-temperature range by several optical spectroscopic techniques, A narrow-g-ap semiconducting phase eta has been found to exist in a range of 80-270 GPa and 10-510 K. The vibrational and optical properties of the eta phase produced under these conditions indicate that it is largely amorphous and back transforms. to a new molecular phase. The band gap of the eta phase is found to decrease with pressure indicating possible metallization by band overlap above 280 GPa.

    Research areas

  • INDUCED AMORPHIZATION, OPTICAL-ABSORPTION, SOLID NITROGEN, PHASES, GPA, CURVES, RAMAN, MBAR, N-2

ID: 11436358