Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1525627 | Materials Chemistry and Physics | 2010 | 6 Pages |
Abstract
First principles calculations were performed to study the hardness, electronic and elastic properties of lanthanide nitrides in rocksalt structure. The calculated lattice parameters are in good agreement with experimental and other theoretical values. The calculations indicate that NdN, PmN, SmN, EuN, TbN are mechanically unstable. The lower B/G and Poisson's ratio of HoN and ErN show that they are brittle than other lanthanide nitrides. Results reveal that the ligand field stabilization energy and lanthanide contraction play important roles in determining the hardness of lanthanide nitrides in rocksalt structure.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jun Yang, Faming Gao, Haiyan Wang, Huiyang Gou, Xianfeng Hao, Zhiping Li,