Mechanical stabilities of K4 carbon and K4-like NaC2
Mechanical stabilities of K4 carbon and K4-like NaC2
复制标题
K4 碳和类 K4 NaC2 的机械稳定性
DOI:
10.1016/j.jpcs.2012.07.013
复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Tadafumi Adschiri,
中科院分区:
文献类型:
--
作者:
Bin Wen;Seiichi Takami;Yoshiyuki Kawazo;Tadafumi Adschiri,
The mechanical stabilities of K4carbon and K4-like NaC2have been studied by performing first-principle calculations. Total energies as functions of isotropic deformations and volume-conserving tetragonal and trigonal deformations have been calculated. For K4carbon, the total energy shows a minimum for isotropic and trigonal deformations, but exhibits maxima for tetragonal deformation. In contrast, the total energy of K4-like NaC2shows a minimum under all three deformations. These results indicate that K4carbon is not a metastable phase, but that K4-like NaC2is a metastable phase. In addition, the heat of formation of K4-like NaC2is discussed.
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1103/physrevb.19.1976
发表时间:
1979
期刊:
影响因子:
--
作者:
S. Prakash;J. Bonnet;P. Lucasson
通讯作者:
P. Lucasson