Thermal Expansion Behaviors of Li3AsW7O25: A Case Study for Comparative Debye Temperature for a Large Polyatomic Unit Cell
Thermal Expansion Behaviors of Li3AsW7O25: A Case Study for Comparative Debye Temperature for a Large Polyatomic Unit Cell
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Li3AsW7O25 的热膨胀行为:大型多原子晶胞比较德拜温度的案例研究
DOI:
10.1002/zaac.201700330
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
T. Gesing
中科院分区:
文献类型:
--
作者:
M. Murshed;P. Zhao;A. Huq;T. Gesing
The thermal expansion behavior of Li3AsW7O25 has been studied. The temperature-dependent development of crystal structural parameters was obtained from Rietveld refinement using neutron time of flight powder diffraction data. Modeling of the lattice thermal expansion was carried out using a Grüneisen first-order approximation for the zero-pressure equation of state, where the temperature-dependent vibrational energy was calculated taking the Debye-Einstein-Anharmonicity approach. Temperature-dependent Raman spectra shed light on some selective modes with unusual anharmonicity. Debye temperatures were calculated using three different theoretical approaches, namely, thermal expansion, meansquared isotropic atomic displacement parameter and heat capacity. Similarities as well as discrepancies between the numerical values obtained from different theoretical approaches are discussed.
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影响因子:
5.4
作者:
M. Murshed;T. Gesing
通讯作者:
M. Murshed;T. Gesing
DOI:
10.1515/zkri-2014-1785
发表时间:
2014
期刊:
Zeitschrift für Kristallographie - Crystalline Materials
影响因子:
--
作者:
K. Hoffmann;M.M. Murshed;R.X. Fischer;H. Schneider;Th.M. Gesing
通讯作者:
Th.M. Gesing
影响因子:
5.4
作者:
Murshed;Mendive;Nénert;Kalita;P- E. Linpinska;A. L. Cornelius;A. L.;Huq;Gesing;Th. M.
通讯作者:
Th. M.
影响因子:
3.3
作者:
Murshed;Mendive;Sehovic;Friedrich;Fischer;Gesing;Th. M.
通讯作者:
Th. M.