Novel high-pressure nitrogen phase formed by compression at low temperature

Mungo Frost; Ross T. Howie; Philip Dalladay-Simpson; Alexander F. Goncharov; Eugene Gregoryanz

doi:10.1103/PhysRevB.93.024113

Novel high-pressure nitrogen phase formed by compression at low temperature

Mungo Frost, Ross T. Howie, Philip Dalladay-Simpson, Alexander F. Goncharov, Eugene Gregoryanz^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Raman spectroscopy and powder x-ray diffraction methods have been used to characterize a novel phase of nitrogen which forms on compression from ambient pressure at low temperatures. The new,lambda, phase exhibits an exceptionally wide range of pressure stability from below 1 to 140 GPa, overlapping nine other known phases. On heating, its transformations are different to those observed in other phases, implying that the phase nitrogen adopts depends not only on P-T path, but also on the initial structural configuration, which greatly complicates its phase diagram.

Original language	English
Article number	024113
Number of pages	5
Journal	Physical Review B
Volume	93
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.93.024113
Publication status	Published - 29 Jan 2016

Keywords / Materials (for Non-textual outputs)

SOLID NITROGEN
GPA
SPECTROSCOPY
RAMAN

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10.1103/PhysRevB.93.024113

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title = "Novel high-pressure nitrogen phase formed by compression at low temperature",

abstract = "Raman spectroscopy and powder x-ray diffraction methods have been used to characterize a novel phase of nitrogen which forms on compression from ambient pressure at low temperatures. The new,lambda, phase exhibits an exceptionally wide range of pressure stability from below 1 to 140 GPa, overlapping nine other known phases. On heating, its transformations are different to those observed in other phases, implying that the phase nitrogen adopts depends not only on P-T path, but also on the initial structural configuration, which greatly complicates its phase diagram.",

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author = "Mungo Frost and Howie, {Ross T.} and Philip Dalladay-Simpson and Goncharov, {Alexander F.} and Eugene Gregoryanz",

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doi = "10.1103/PhysRevB.93.024113",

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AU - Frost, Mungo

AU - Howie, Ross T.

AU - Dalladay-Simpson, Philip

AU - Goncharov, Alexander F.

AU - Gregoryanz, Eugene

PY - 2016/1/29

Y1 - 2016/1/29

N2 - Raman spectroscopy and powder x-ray diffraction methods have been used to characterize a novel phase of nitrogen which forms on compression from ambient pressure at low temperatures. The new,lambda, phase exhibits an exceptionally wide range of pressure stability from below 1 to 140 GPa, overlapping nine other known phases. On heating, its transformations are different to those observed in other phases, implying that the phase nitrogen adopts depends not only on P-T path, but also on the initial structural configuration, which greatly complicates its phase diagram.

AB - Raman spectroscopy and powder x-ray diffraction methods have been used to characterize a novel phase of nitrogen which forms on compression from ambient pressure at low temperatures. The new,lambda, phase exhibits an exceptionally wide range of pressure stability from below 1 to 140 GPa, overlapping nine other known phases. On heating, its transformations are different to those observed in other phases, implying that the phase nitrogen adopts depends not only on P-T path, but also on the initial structural configuration, which greatly complicates its phase diagram.

KW - SOLID NITROGEN

KW - GPA

KW - SPECTROSCOPY

KW - RAMAN

U2 - 10.1103/PhysRevB.93.024113

DO - 10.1103/PhysRevB.93.024113

M3 - Article

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JO - Physical Review B

JF - Physical Review B

IS - 2

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ER -

Novel high-pressure nitrogen phase formed by compression at low temperature

Abstract

Keywords / Materials (for Non-textual outputs)

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