Debye Temperature of the MgCNi3 Superconductor
Debye Temperature of the MgCNi3 Superconductor
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DOI：
10.1088/0256-307x/19/2/334
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发表时间：
2002-02
影响因子：
3.5
通讯作者：
Wei Zhi-feng;Wei Zhi-feng;C. Xiaolong;Che Guang-can;Wan FuMing;L. Wenchao;He Meng
中科院分区：
文献类型：
--
作者：
Wei Zhi-feng;Wei Zhi-feng;C. Xiaolong;Che Guang-can;Wan FuMing;L. Wenchao;He Meng
本文根据粉末X射线衍射数据，用Rietveld精化方法测定了MgCNi_3超导体的德拜温度。MgCNi3以立方钙钛矿结构结晶，空间群Pm（3）在bar m上，晶格常数a = 3.8089埃。Mg、C和Ni原子的温度因子分别为0.52、0.45和0.44。计算得到MgCNi3的德拜温度为Theta（D）= 440 K。
We have determined the Debye temperature of the MgCNi3 superconductor by using the Rietveld refinement method based on the powder x-ray diffraction data. MgCNi3 crystallizes in the cubic perovskite structure with space group Pm (3) over bar m and lattice constant a = 3.8089 Angstrom. The temperature factors of the atoms Mg, C and Ni are 0.52, 0.45 and 0.44, respectively. The Debye temperature of MgCNi3 is calculated to be Theta(D) = 440 K.