Melting of dense sodium

E Gregoryanz; O Degtyareva; M Somayazulu; RJ Hemley; HK Mao

doi:10.1103/PhysRevLett.94.185502

Melting of dense sodium

E Gregoryanz^*, O Degtyareva, M Somayazulu, RJ Hemley, HK Mao

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract / Description of output

High-pressure high-temperature synchrotron diffraction measurements reveal a maximum on the melting curve of Na in the bcc phase at similar to 31 GPa and 1000 K and a steep decrease in melting temperature in its fcc phase. The results extend the melting curve by an order of magnitude up to 130 GPa. Above 103 GPa, Na crystallizes in a sequence of phases with complex structures with unusually low melting temperatures, reaching 300 K at 118 GPa, and an increased melting temperature is observed with further increases in pressure.

Original language	English
Article number	185502
Number of pages	4
Journal	Physical Review Letters
Volume	94
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.94.185502
Publication status	Published - 13 May 2005

Keywords / Materials (for Non-textual outputs)

HIGH-PRESSURE PHASES
DIAMOND-ANVIL CELL
ALKALI-METALS
LITHIUM
TRANSITION
HYDROGEN
SUPERCONDUCTIVITY
SYSTEMATICS
POTASSIUM
CURVES

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10.1103/PhysRevLett.94.185502

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@article{ed7e3bb9ea5948c2b7d3d6ae69c04506,

title = "Melting of dense sodium",

abstract = "High-pressure high-temperature synchrotron diffraction measurements reveal a maximum on the melting curve of Na in the bcc phase at similar to 31 GPa and 1000 K and a steep decrease in melting temperature in its fcc phase. The results extend the melting curve by an order of magnitude up to 130 GPa. Above 103 GPa, Na crystallizes in a sequence of phases with complex structures with unusually low melting temperatures, reaching 300 K at 118 GPa, and an increased melting temperature is observed with further increases in pressure.",

keywords = "HIGH-PRESSURE PHASES, DIAMOND-ANVIL CELL, ALKALI-METALS, LITHIUM, TRANSITION, HYDROGEN, SUPERCONDUCTIVITY, SYSTEMATICS, POTASSIUM, CURVES",

author = "E Gregoryanz and O Degtyareva and M Somayazulu and RJ Hemley and HK Mao",

year = "2005",

month = may,

day = "13",

doi = "10.1103/PhysRevLett.94.185502",

language = "English",

volume = "94",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

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TY - JOUR

T1 - Melting of dense sodium

AU - Gregoryanz, E

AU - Degtyareva, O

AU - Somayazulu, M

AU - Hemley, RJ

AU - Mao, HK

PY - 2005/5/13

Y1 - 2005/5/13

N2 - High-pressure high-temperature synchrotron diffraction measurements reveal a maximum on the melting curve of Na in the bcc phase at similar to 31 GPa and 1000 K and a steep decrease in melting temperature in its fcc phase. The results extend the melting curve by an order of magnitude up to 130 GPa. Above 103 GPa, Na crystallizes in a sequence of phases with complex structures with unusually low melting temperatures, reaching 300 K at 118 GPa, and an increased melting temperature is observed with further increases in pressure.

AB - High-pressure high-temperature synchrotron diffraction measurements reveal a maximum on the melting curve of Na in the bcc phase at similar to 31 GPa and 1000 K and a steep decrease in melting temperature in its fcc phase. The results extend the melting curve by an order of magnitude up to 130 GPa. Above 103 GPa, Na crystallizes in a sequence of phases with complex structures with unusually low melting temperatures, reaching 300 K at 118 GPa, and an increased melting temperature is observed with further increases in pressure.

KW - HIGH-PRESSURE PHASES

KW - DIAMOND-ANVIL CELL

KW - ALKALI-METALS

KW - LITHIUM

KW - TRANSITION

KW - HYDROGEN

KW - SUPERCONDUCTIVITY

KW - SYSTEMATICS

KW - POTASSIUM

KW - CURVES

U2 - 10.1103/PhysRevLett.94.185502

DO - 10.1103/PhysRevLett.94.185502

M3 - Article

SN - 0031-9007

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 185502

ER -

Melting of dense sodium

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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