On the pressure dependence of the Grüneisen parameter and debye temperature for CsI crystals

1996 ◽  
Vol 193 (2) ◽  
pp. 335-339 ◽  
Author(s):  
R. G. Kulkarni ◽  
M. Abd-Elmeguid ◽  
S. Bukshpan ◽  
K. Milants ◽  
J. Verheyden ◽  
...  
Keyword(s):  
Debye Temperature ◽  
Pressure Dependence ◽  
Grüneisen Parameter ◽  
Gruneisen Parameter

Pressure dependence of the transverse optical mode Grüneisen parameter of crystals

1995 ◽  
Vol 19 (4) ◽  
pp. 403-408 ◽  
Author(s):  
L. Tribe ◽  
R.M. Fracchia ◽  
J.A.O. Bruno ◽  
A. Batana
Keyword(s):  
Pressure Dependence ◽  
Transverse Optical ◽  
Grüneisen Parameter ◽  
Optical Mode ◽  
Gruneisen Parameter

Elastic and Thermal Properties of SrCo1-xScxO3-δ

2014 ◽  
Vol 975 ◽  
pp. 283-287
Author(s):  
Rasna Thakur ◽  
Rajesh K. Thakur ◽  
N.K. Gaur
Keyword(s):  
Thermal Properties ◽  
Specific Heat ◽  
Debye Temperature ◽  
Elastic Constants ◽  
Cohesive Energy ◽  
Second Order ◽  
Grüneisen Parameter ◽  
Gruneisen Parameter ◽  
Rigid Ion Model

We have investigated the elastic and thermal properties for perovskite SrCo1-xScxO3-d, by means of Modified Rigid Ion Model (MRIM). We have also computed the second order Elastic constants (SOECs) and their combinations. Besides we have reported the cohesive energy (f), Debye temperature (θD) and Gruneisen parameter (γ). The variation of specific heat (C) at temperature 15 K≤x≤1000 K is computed for SrCo1-xScxO3-d. The computed properties reproduce well with the available data in literature.

scholarly journals Raman wavenumbers calculated as a function of pressure from the mode Grüneisen parameter of PZT (x=0.48) ceramic close to the monoclinic-cubic transition

2019 ◽  
Vol 09 (05) ◽  
pp. 1950039
Author(s):  
A. Kiraci
Keyword(s):  
Pressure Dependence ◽  
Thermodynamic Quantities ◽  
Grüneisen Parameter ◽  
Volume Data ◽  
Expansion Formula ◽  
Gruneisen Parameter ◽  
Raman Modes ◽  
Isothermal Mode ◽  
Perovskite Type ◽  
Good Agreement

The isothermal mode Grüneisen parameter [Formula: see text] of some Raman modes in [Formula: see text]TixO3 (PZT, [Formula: see text]) were calculated as a function of pressure by means of the observed pressure-dependent volume data of PZT ([Formula: see text]) crystal from the literature at room temperature of 298[Formula: see text]K. Those calculated values of [Formula: see text] were then used to compute the pressure dependence of the Raman modes in PZT ([Formula: see text]) ceramic studied here. The observed and calculated values of the Raman wavenumbers in PZT were in good agreement, which indicates that the isothermal mode Grüneisen parameter can also be used to predict the pressure-dependent wavenumbers of some other perovskite-type crystals. Additionally, the pressure dependence of the thermodynamic quantities such as isothermal compressibility [Formula: see text], thermal expansion [Formula: see text] and the specific heat [Formula: see text] of PZT ([Formula: see text]) ceramic were predicted at constant temperature of 298[Formula: see text]K. Here, the experimentally measurable thermodynamic quantities calculated for PZT ([Formula: see text]) ceramics provide theoretically a significant opportunity for testing.

The Debye temperature and Grüneisen parameter of the CaLa2S4-La2S3 system

2002 ◽  
Vol 44 (6) ◽  
pp. 1067-1070 ◽  
Author(s):  
S. M. Luguev ◽  
N. V. Lugueva ◽  
Sh. M. Ismailov
Keyword(s):  
Debye Temperature ◽  
Grüneisen Parameter ◽  
Gruneisen Parameter
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