Structural diversity of sodium

Eugene Gregoryanz; Lars F. Lundegaard; Malcolm I. McMahon; Christophe Guillaume; Richard J. Nelmes; Mohamed Mezouar

doi:10.1126/science.1155715

Structural diversity of sodium

Eugene Gregoryanz, Lars F. Lundegaard, Malcolm I. McMahon, Christophe Guillaume, Richard J. Nelmes, Mohamed Mezouar

School of Physics and Astronomy

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

Abstract / Description of output

Sodium exhibits a pronounced minimum of the melting temperature at similar to 118 gigapascals and 300 kelvin. Using single- crystal high- pressure diffraction techniques, we found that the minimum of the sodium melting curve is associated with a concentration of seven different crystalline phases. Slight changes in pressure and/ or temperature induce transitions between numerous structural modifications, several of which are highly complex. The complexity of the phase behavior above 100 gigapascals suggests extraordinary liquid and solid states of sodium at extreme conditions and has implications for other seemingly simple metals.

Original language	English
Pages (from-to)	1054-1057
Number of pages	4
Journal	Science
Volume	320
Issue number	5879
DOIs	https://doi.org/10.1126/science.1155715
Publication status	Published - 23 May 2008

Keywords / Materials (for Non-textual outputs)

LIQUID METALLIC HYDROGEN
DENSE LITHIUM
SUPERCONDUCTIVITY
CONSTITUTION
PRESSURE

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10.1126/science.1155715

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title = "Structural diversity of sodium",

abstract = "Sodium exhibits a pronounced minimum of the melting temperature at similar to 118 gigapascals and 300 kelvin. Using single- crystal high- pressure diffraction techniques, we found that the minimum of the sodium melting curve is associated with a concentration of seven different crystalline phases. Slight changes in pressure and/ or temperature induce transitions between numerous structural modifications, several of which are highly complex. The complexity of the phase behavior above 100 gigapascals suggests extraordinary liquid and solid states of sodium at extreme conditions and has implications for other seemingly simple metals.",

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author = "Eugene Gregoryanz and Lundegaard, {Lars F.} and McMahon, {Malcolm I.} and Christophe Guillaume and Nelmes, {Richard J.} and Mohamed Mezouar",

year = "2008",

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day = "23",

doi = "10.1126/science.1155715",

language = "English",

volume = "320",

pages = "1054--1057",

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TY - JOUR

T1 - Structural diversity of sodium

AU - Gregoryanz, Eugene

AU - Lundegaard, Lars F.

AU - McMahon, Malcolm I.

AU - Guillaume, Christophe

AU - Nelmes, Richard J.

AU - Mezouar, Mohamed

PY - 2008/5/23

Y1 - 2008/5/23

N2 - Sodium exhibits a pronounced minimum of the melting temperature at similar to 118 gigapascals and 300 kelvin. Using single- crystal high- pressure diffraction techniques, we found that the minimum of the sodium melting curve is associated with a concentration of seven different crystalline phases. Slight changes in pressure and/ or temperature induce transitions between numerous structural modifications, several of which are highly complex. The complexity of the phase behavior above 100 gigapascals suggests extraordinary liquid and solid states of sodium at extreme conditions and has implications for other seemingly simple metals.

AB - Sodium exhibits a pronounced minimum of the melting temperature at similar to 118 gigapascals and 300 kelvin. Using single- crystal high- pressure diffraction techniques, we found that the minimum of the sodium melting curve is associated with a concentration of seven different crystalline phases. Slight changes in pressure and/ or temperature induce transitions between numerous structural modifications, several of which are highly complex. The complexity of the phase behavior above 100 gigapascals suggests extraordinary liquid and solid states of sodium at extreme conditions and has implications for other seemingly simple metals.

KW - LIQUID METALLIC HYDROGEN

KW - DENSE LITHIUM

KW - SUPERCONDUCTIVITY

KW - CONSTITUTION

KW - PRESSURE

UR - http://www.scopus.com/inward/record.url?scp=46649107142&partnerID=8YFLogxK

U2 - 10.1126/science.1155715

DO - 10.1126/science.1155715

M3 - Article

SN - 0036-8075

VL - 320

SP - 1054

EP - 1057

JO - Science

JF - Science

IS - 5879

ER -

Structural diversity of sodium

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Keywords / Materials (for Non-textual outputs)

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