Please wait a minute...
Chin. Phys. B, 2009, Vol. 18(10): 4437-4442    DOI: 10.1088/1674-1056/18/10/055
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

All-electron study of ultra-incompressible superhard material ReB2: structural and electronic properties

Li Yan-Ling(李延龄)a)b), Zhong Guo-Hua(钟国华)a), and Zeng Zhi(曾雉)a)
a Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China and Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; b Department of Physics, Xuzhou Normal University, Xuzhou 221116, China
Abstract  This paper investigates the structural and electronic properties of rhenium diboride by first-principles calculation based on density functional theory. The obtained results show that the calculated equilibrium structural parameters of ReB2 are in excellent agreement with experimental values. The calculated bulk modulus is 361 GPa in comparison with that of the experiment. The compressibility of ReB2 is lower than that of well-known OsB2. The anisotropy of the bulk modulus is confirmed by c/a ratio as a function of pressure curve and the bulk modulus along different axes along with the electron density distribution. The high bulk modulus is attributed to the strong covalent bond between Re-d and B-p orbitals and the wider pseudogap near the Fermi level, which could be deduced from both electron charge density distribution and density of states. The band structure and density of states of ReB2 exhibit that this material presents metallic behavior. The good metallicity and ultra-incompressibility of ReB2 might suggest its potential application as pressure-proof conductors.
Keywords:  first-principles      incompressibility      electronic property  
Received:  07 March 2009      Revised:  28 March 2009      Accepted manuscript online: 
PACS:  71.20.Ps (Other inorganic compounds)  
  61.66.Fn (Inorganic compounds)  
  62.20.D- (Elasticity)  
  62.20.F- (Deformation and plasticity)  
  71.15.Mb (Density functional theory, local density approximation, gradient and other corrections)  
  81.40.Jj (Elasticity and anelasticity, stress-strain relations)  
Fund: Project supported by the Special Funds for Major State Basic Research Project of China (Grant No 2007CB925004), 863 Project, Knowledge Innovation Program of the Chinese Academy of Sciences, and Director Grants of CASHIPS.

Cite this article: 

Li Yan-Ling(李延龄), Zhong Guo-Hua(钟国华), and Zeng Zhi(曾雉) All-electron study of ultra-incompressible superhard material ReB2: structural and electronic properties 2009 Chin. Phys. B 18 4437

[1] Effects of phonon bandgap on phonon-phonon scattering in ultrahigh thermal conductivity θ-phase TaN
Chao Wu(吴超), Chenhan Liu(刘晨晗). Chin. Phys. B, 2023, 32(4): 046502.
[2] First-principles study of the bandgap renormalization and optical property of β-LiGaO2
Dangqi Fang(方党旗). Chin. Phys. B, 2023, 32(4): 047101.
[3] Prediction of one-dimensional CrN nanostructure as a promising ferromagnetic half-metal
Wenyu Xiang(相文雨), Yaping Wang(王亚萍), Weixiao Ji(纪维霄), Wenjie Hou(侯文杰),Shengshi Li(李胜世), and Peiji Wang(王培吉). Chin. Phys. B, 2023, 32(3): 037103.
[4] Rational design of Fe/Co-based diatomic catalysts for Li-S batteries by first-principles calculations
Xiaoya Zhang(张晓雅), Yingjie Cheng(程莹洁), Chunyu Zhao(赵春宇), Jingwan Gao(高敬莞), Dongxiao Kan(阚东晓), Yizhan Wang(王义展), Duo Qi(齐舵), and Yingjin Wei(魏英进). Chin. Phys. B, 2023, 32(3): 036803.
[5] Single-layer intrinsic 2H-phase LuX2 (X = Cl, Br, I) with large valley polarization and anomalous valley Hall effect
Chun-Sheng Hu(胡春生), Yun-Jing Wu(仵允京), Yuan-Shuo Liu(刘元硕), Shuai Fu(傅帅),Xiao-Ning Cui(崔晓宁), Yi-Hao Wang(王易昊), and Chang-Wen Zhang(张昌文). Chin. Phys. B, 2023, 32(3): 037306.
[6] Li2NiSe2: A new-type intrinsic two-dimensional ferromagnetic semiconductor above 200 K
Li-Man Xiao(肖丽蔓), Huan-Cheng Yang(杨焕成), and Zhong-Yi Lu(卢仲毅). Chin. Phys. B, 2023, 32(3): 037501.
[7] First-principles prediction of quantum anomalous Hall effect in two-dimensional Co2Te lattice
Yuan-Shuo Liu(刘元硕), Hao Sun(孙浩), Chun-Sheng Hu(胡春生), Yun-Jing Wu(仵允京), and Chang-Wen Zhang(张昌文). Chin. Phys. B, 2023, 32(2): 027101.
[8] First-principles study on β-GeS monolayer as high performance electrode material for alkali metal ion batteries
Meiqian Wan(万美茜), Zhongyong Zhang(张忠勇), Shangquan Zhao(赵尚泉), and Naigen Zhou(周耐根). Chin. Phys. B, 2022, 31(9): 096301.
[9] Effects of oxygen concentration and irradiation defects on the oxidation corrosion of body-centered-cubic iron surfaces: A first-principles study
Zhiqiang Ye(叶志强), Yawei Lei(雷亚威), Jingdan Zhang(张静丹), Yange Zhang(张艳革), Xiangyan Li(李祥艳), Yichun Xu(许依春), Xuebang Wu(吴学邦), C. S. Liu(刘长松), Ting Hao(郝汀), and Zhiguang Wang(王志光). Chin. Phys. B, 2022, 31(8): 086802.
[10] Machine learning potential aided structure search for low-lying candidates of Au clusters
Tonghe Ying(应通和), Jianbao Zhu(朱健保), and Wenguang Zhu(朱文光). Chin. Phys. B, 2022, 31(7): 078402.
[11] Bandgap evolution of Mg3N2 under pressure: Experimental and theoretical studies
Gang Wu(吴刚), Lu Wang(王璐), Kuo Bao(包括), Xianli Li(李贤丽), Sheng Wang(王升), and Chunhong Xu(徐春红). Chin. Phys. B, 2022, 31(6): 066205.
[12] Evaluation of performance of machine learning methods in mining structure—property data of halide perovskite materials
Ruoting Zhao(赵若廷), Bangyu Xing(邢邦昱), Huimin Mu(穆慧敏), Yuhao Fu(付钰豪), and Lijun Zhang(张立军). Chin. Phys. B, 2022, 31(5): 056302.
[13] Alloying and magnetic disordering effects on phase stability of Co2 YGa (Y=Cr, V, and Ni) alloys: A first-principles study
Chun-Mei Li(李春梅), Shun-Jie Yang(杨顺杰), and Jin-Ping Zhou(周金萍). Chin. Phys. B, 2022, 31(5): 056105.
[14] First-principles calculations of the hole-induced depassivation of SiO2/Si interface defects
Zhuo-Cheng Hong(洪卓呈), Pei Yao(姚佩), Yang Liu(刘杨), and Xu Zuo(左旭). Chin. Phys. B, 2022, 31(5): 057101.
[15] Topological properties of Sb(111) surface: A first-principles study
Shuangxi Wang(王双喜) and Ping Zhang(张平). Chin. Phys. B, 2022, 31(4): 047105.
No Suggested Reading articles found!