High-pressure and high-temperature bulk modulus of cubic fluorite-type MgF2 from quasi-harmonic Debye model

The thermal properties of cubic zincblende (B3) thallium - phosphide (TlP) compound under high pressure up to 12 GPa have been studied using the quasi-harmonic Debye model approximation. The relative unit cell volume, the isothermal bulk modulus, the first order derivative isothermal bulk modulus, the Debye temperature and the Grüneisen parameter are studied at zero-temperature and at standard ambient temperature (298 K) respectively. Our obtained values of the different previous quantities are in general in agreement compared to other theoretical data of the literature.

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Equation of state and bulk modulus under the effect of high pressure-high temperature

Physics and Chemistry of Minerals ◽

10.1007/s002690000118 ◽

2000 ◽

Vol 27 (9) ◽

pp. 650-655 ◽

Cited By ~ 12

Author(s):

M. Kumar

Keyword(s):

High Pressure ◽

High Temperature ◽

Equation Of State ◽

Bulk Modulus ◽

High Pressure High Temperature

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High-temperature and high-pressure thermal expansivity of cubic PtC from quasi-harmonic Debye model

Chemical Physics Letters ◽

10.1016/j.cplett.2011.09.063 ◽

2011 ◽

Vol 516 (4-6) ◽

pp. 158-161 ◽

Cited By ~ 6

Author(s):

Xiao-Wei Sun ◽

Qi-Feng Chen ◽

Ling-Cang Cai ◽

Xiang-Rong Chen ◽

Fu-Qian Jing

Keyword(s):

High Pressure ◽

High Temperature ◽

Debye Model ◽

Thermal Expansivity

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Study of high-pressure and high-temperature behaviors and α-to-β phase transition of forsterite by first-principles and quasi-harmonic Debye model

Computer Physics Communications ◽

10.1016/j.cpc.2008.04.003 ◽

2008 ◽

Vol 179 (6) ◽

pp. 417-423 ◽

Cited By ~ 12

Author(s):

Lei Liu ◽

Jianguo Du ◽

Jijun Zhao ◽

Hong Liu ◽

Di Wu ◽

...

Keyword(s):

Phase Transition ◽

High Pressure ◽

High Temperature ◽

First Principles ◽

Debye Model ◽

Β Phase

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Powder diffraction analysis of cerium dioxide at high pressure

Powder Diffraction ◽

10.1017/s0885715600017966 ◽

1993 ◽

Vol 8 (2) ◽

pp. 127-129 ◽

Cited By ~ 96

Author(s):

L. Gerward ◽

J. Staun Olsen

Keyword(s):

Phase Transition ◽

High Pressure ◽

Bulk Modulus ◽

Diffraction Analysis ◽

Powder Diffraction ◽

Cerium Dioxide ◽

Low Pressure ◽

Type Structure ◽

Volume Contraction ◽

Fluorite Type

CeO2 transforms to an orthorhombic PbCl2-type structure at a pressure of about 31 GPa. The phase transition is accompanied by a 9.8% volume contraction. The bulk modulus of the low-pressure fluorite-type structure is 236(4) GPa. Comparisons are made with the high-pressure behaviour of UO2 and ThO2.

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High-pressure and high-temperature studies on fluorite-type Pb1−xNdxF2+x (x=0.15 and 0.25)

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2005.08.069 ◽

2006 ◽

Vol 417 (1-2) ◽

pp. 250-253 ◽

Cited By ~ 4

Author(s):

S.N. Achary ◽

A.K. Tyagi ◽

P. Balog ◽

J. Köhler

Keyword(s):

High Pressure ◽

High Temperature ◽

Fluorite Type

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HIGH PRESSURE-HIGH TEMPERATURE ELECTRICAL RESISTIVITY STUDIES ON Nd0.9Ca0.1Ba2Cu3O7-δ

International Journal of Modern Physics B ◽

10.1142/s0217979206035710 ◽

2006 ◽

Vol 20 (29) ◽

pp. 4885-4890

Author(s):

R. SELVA VENNILA ◽

S. REZA GHORBANI ◽

N. VICTOR JAYA

Keyword(s):

High Pressure ◽

Electrical Resistivity ◽

High Temperature ◽

Bulk Modulus ◽

Structural Changes ◽

X Ray Diffraction ◽

Heating Coil ◽

X Ray ◽

High Pressure High Temperature ◽

Electrical Resistivity Study

High pressure-high temperature electrical resistivity study on composition-controlled Nd 0.9 Ca 0.1 Ba 2 Cu 3 O 7-δ high T c superconductor (HTSC) is carried out by a four-probe technique using Bridgman anvils. A simple heating coil arrangement is used for heating the samples. Electrical resistivity behavior under pressure (up to a maximum of 8 GPa) at various temperatures (up to a maximum of 523 K) were studied and reported in this paper. Simulation of energy dispersive X-ray diffraction confirms substitution of calcium at the Nd site of Nd -123. Variation of the electrical resistivity under pressure is compared with that of the structural changes and the bulk modulus was determined.

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