Heat capacity and thermal expansion of icosahedral lutetium boride LuB66

被引:0
作者
V. V. Novikov
D. V. Avdashchenko
A. V. Matovnikov
N. V. Mitroshenkov
S. L. Bud’ko
机构
[1] Petrovsky Bryansk State University,Ames Laboratory
[2] U.S. DOE,Department of Physics and Astronomy
[3] Iowa State University,undefined
来源
Journal of Thermal Analysis and Calorimetry | 2014年 / 116卷
关键词
Heat capacity; Thermal expansion; Low temperatures; Borides;
D O I
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学科分类号
摘要
The experimental values of heat capacity and thermal expansion for lutetium boride LuB66 in the temperature range of 2–300 K were analysed in the Debye–Einstein approximation. It was found that the vibration of the boron sub-lattice can be considered within the Debye model with high characteristic temperatures; low-frequency vibration of weakly connected metal atoms is described by the Einstein model.
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页码:765 / 769
页数:4
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