Melting of LiF and NaCl to 1 Mbar: Systematics of ionic solids at extreme conditions

被引：158

作者：

Boehler, R ^{[1
]}

Ross, M ^{[1
]}

Boercker, DB ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.78.4589

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first diamond cell data for the melting curves of LIF and NaCl up to 1 Mbar (100 GPa). The melting curve of NaCl is in agreement with shock data and shows a break in slope at 290 kbar due to the B1(NaCl)-B2(CsCl) transition. LiF remains B1 to the highest pressure, and molecular dynamic simulations predict that molten LIF retains a simple-cubic B1-like structure. A plot of the recent Mainz diamond anvil melting curves for MgO, LiF, KBr, KCI, CsI, and NaCl shows that at very high pressure all the melting curves have very similar slopes approaching a value of order 1-2 K/kbar.

引用

页码：4589 / 4592

页数：4

共 27 条

[1] AHRENS TJ, 1982, ADV EARTH PLANETARY
[2] MELTING OF SODIUM CHLORIDE AT PRESSURES TO 65 KBAR
AKELLA, J
VAIDYA, SN
KENNEDY, GC
[J]. PHYSICAL REVIEW, 1969, 185 (03): : 1135 - &
[3] ALTSHULER LV, 1963, SOV PHYS-SOLID STATE, V5, P203
[4] Belonoshko AB, 1996, AM MINERAL, V81, P303
[5] TEMPERATURES IN THE EARTHS CORE FROM MELTING-POINT MEASUREMENTS OF IRON AT HIGH STATIC PRESSURES
BOEHLER, R
[J]. NATURE, 1993, 363 (6429) : 534 - 536
[6] Melting temperature of the earth's mantle and core: Earth's thermal structure
Boehler, R
[J]. ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, 1996, 24 : 15 - 40
[7] High-pressure melting curves of alkali halides
Boehler, R
Ross, M
Boercker, DB
[J]. PHYSICAL REVIEW B, 1996, 53 (02) : 556 - 563
[8] Fe-FeS eutectic temperatures to 620 kbar
Boehler, R
[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1996, 96 (2-3) : 181 - 186
[9] BOEHLER R, IN PRESS
[10] MELTING AND MELT STRUCTURE OF MGO AT HIGH-PRESSURES
COHEN, RE
GONG, Z
[J]. PHYSICAL REVIEW B, 1994, 50 (17): : 12301 - 12311

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