X-RAY-DIFFRACTION STUDY OF THE EQUATION OF STATE AND THE PHASE-TRANSITION IN CESIUM IODIDE AT NEARLY HYDROSTATIC-PRESSURE

被引：12

作者：

ALEKSANDROV, IV ^{[1
]}

GONCHAROV, AF ^{[1
]}

MAKARENKO, IN ^{[1
]}

STISHOV, SM ^{[1
]}

机构：

[1] CALTECH,DIV GEOL & PLANETARY SCI,PASADENA,CA 91125

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.43.6194

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray-diffraction study of CsI was performed along the room-temperature isotherm up to pressure of 52 GPa by using a diamond-anvil cell and compressed helium as a pressure medium. It turned out that the equation-of-state data obtained differ from the results of previous nonhydrostatic measurements, with the latter overestimating the pressure. The phase diagram of CsI is found to be sensitive to the hydrostaticity of a pressure transmitting medium as well. The experimental data suggest that the cubic phase of CsI transforms directly into the orthorhombic one under hydrostatic conditions.

引用

页码：6194 / 6197

页数：4

共 21 条

[1] EQUATION OF STATE AND METALLIZATION OF CSI [J].

AIDUN, J ;

BUKOWINSKI, MST ;

ROSS, M .

PHYSICAL REVIEW B, 1984, 29 (05) :2611-2621

[2]

ALEKSANDROV IV, 1987, ZH EKSP TEOR FIZ, V65, P371

[3]

ALEKSANDROV IV, 1987, ZH EKSP TEOR FIZ, V66, P384

[4]

[Anonymous], 1945, P AM ACAD ARTS SCI

[5]

ASAMI K, 1984, PHYS REV, V28, P1118

[6] PRESSURE INDICATOR IN ELASTIC AND PLASTIC MEDIA [J].

AVILOV, VV ;

ARKHIPOV, RG .

SOLID STATE COMMUNICATIONS, 1983, 48 (10) :933-935

[7]

BARSCH GR, 1971, NBS SPEC PUBL, V326, P173

[8] The compression of 46 substances to 50,000 kg/cm(2) [J].

Bridgman, PW .

PROCEEDINGS OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES, 1940, 74 (1/7) :21-51

[9] EQUATION OF STATE AND HIGH-PRESSURE PHASE-TRANSITION OF CSI [J].

HUANG, TL ;

RUOFF, AL .

PHYSICAL REVIEW B, 1984, 29 (02) :1112-1114

[10] STRUCTURAL AND BONDING CHANGES IN CESIUM IODIDE AT HIGH-PRESSURES [J].

KNITTLE, E ;

JEANLOZ, R .

SCIENCE, 1984, 223 (4631) :53-56

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