High pressure insulator-metal transition in molecular fluid oxygen

被引：83

作者：

Bastea, M ^{[1
]}

Mitchell, AC ^{[1
]}

Nellis, WJ ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.3108

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first experimental evidence for a metallic phase in fluid molecular oxygen. Our electrical conductivity measurements of fluid oxygen under dynamic quasi-isentropic compression show that a nonmetal-metal transition occurs at 3.4 fold compression, 4500 K, and 1.2 Mbar. We discuss the main features of the electrical conductivity dependence on density and temperature and give an interpretation of the nature of the electrical transport mechanisms in fluid oxygen at these extreme conditions.

引用

页码：3108 / 3111

页数：4

共 34 条

[1] NEW HIGH-PRESSURE STRUCTURAL TRANSITION OF OXYGEN AT 96 GPA ASSOCIATED WITH METALLIZATION IN A MOLECULAR-SOLID [J].

AKAHAMA, Y ;

KAWAMURA, H ;

HAUSERMANN, D ;

HANFLAND, M ;

SHIMOMURA, O .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4690-4693

[2] EFFECT OF PRESSURE ON RESISTANCE OF IODINE AND SELENIUM [J].

BALCHAN, AS ;

DRICKAMER, HG .

JOURNAL OF CHEMICAL PHYSICS, 1961, 34 (06) :1948-&

[3] Shock-induced transformation of liquid deuterium into a metallic fluid [J].

Celliers, PM ;

Collins, GW ;

Da Silva, LB ;

Gold, DM ;

Cauble, R ;

Wallace, RJ ;

Foord, ME ;

Hammel, BA .

PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5564-5567

[4] SOLID O2 NEAR 298-K - THE STRUCTURE OF BETA-O2 AND IDENTIFICATION OF A NEW EPSILON-PHASE [J].

DAMOUR, H ;

HOLZAPFEL, WB ;

NICOL, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (02) :130-131

[5] OPTICAL-RESPONSE OF VERY HIGH-DENSITY SOLID OXYGEN TO 132-GPA [J].

DESGRENIERS, S ;

VOHRA, YK ;

RUOFF, AL .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (03) :1117-1122

[6]

Edwards P. P., 1995, METAL INSULATOR TRAN

[7]

FISK Z, 1976, PHYS REV LETT, V36, P1576

[8] PRESSURE-INDUCED FACE-CENTERED-CUBIC PHASE OF MONATOMIC METALLIC IODINE [J].

FUJII, Y ;

HASE, K ;

HAMAYA, N ;

OHISHI, Y ;

ONODERA, A ;

SHIMOMURA, O ;

TAKEMURA, K .

PHYSICAL REVIEW LETTERS, 1987, 58 (08) :796-799

[9]

Goldhammer da, 1911, Dispersion und Absorption des Lichtes

[10] Optical evidence for a nonmolecular phase of nitrogen above 150 GPa [J].

Goncharov, AF ;

Gregoryanz, E ;

Mao, HK ;

Liu, ZX ;

Hemley, RJ .

PHYSICAL REVIEW LETTERS, 2000, 85 (06) :1262-1265

← 1 2 3 4 →