二维M2Cl2(M:Mg、Ca、Sr、Ba)的力学性质及电子结构

  • 王博静 ,
  • 侯懿娜 ,
  • 王瑞宁
展开
王博静(1999—),女,河北大学在读硕士研究生,主要研究方向为新型功能材料的理论设计.
E-mail: 20218015008@stumail.hbu.edu.cn

收稿日期: 2024-04-18

  网络出版日期: 2025-03-26

基金资助

国家自然科学基金资助项目(61704044)

Mechanical properties and electronic structure of two-dimensional M2Cl2(M:Mg,Ca,Sr,Ba)

  • WANG Bojing ,
  • HOU Yina ,
  • WANG Ruining
Expand
  • College of Physics Science and Technology, Hebei University, Baoding 071002, China

Received date: 2024-04-18

  Online published: 2025-03-26

摘要

为探寻新型二维纳米材料及其物理特性,本文基于密度泛函理论的第一性原理方法,研究了具有ABAB堆叠方式的二维碱土金属氯化物的稳定性、力学性质和电子结构.结果显示:首次预测的二维M2Cl2(M:Mg、Ca、Sr、Ba)具有动力学稳定性,能够在实验室中合成.材料具有良好的延展性,在抗体积形变和抗剪切能力方面表现突出.进一步分析表明:垂直电场能够打破2层碱土金属原子之间的对称性进而引起半导体到金属的相变.当电场增加到一定阈值时,能够诱导出磁性.本研究表明二维碱土金属氯化物是一类具有优异力学、磁学等特性的纳米材料,并在自旋电子器件、柔性电子器件等方面具有广阔的应用前景.

本文引用格式

王博静 , 侯懿娜 , 王瑞宁 . 二维M2Cl2(M:Mg、Ca、Sr、Ba)的力学性质及电子结构[J]. 河北大学学报(自然科学版), 2025 , 45(2) : 140 -147 . DOI: 10.3969/j.issn.1000-1565.2025.02.004

Abstract

In order to explore new two-dimensional nanomaterials and their physical properties, the stability, mechanical properties and electronic structure of two-dimensional alkaline earth metal chlorides with ABAB-stacked mode are studied based on the first-principles method of density functional theory.The results show that the first predicted two-dimensional M2Cl2( M: Mg, Ca, Sr, Ba )has dynamic stability and can be synthesized in the laboratory. The material has good ductility and outstanding resistance to volume deformation and shear resistance. Further analysis shows that the vertical electric field can break the symmetry between the two layers of alkaline earth metal atoms and cause the phase transition from semiconductor to metal. When the electric field increases to a certain threshold, magnetism can be induced. This study shows that two-dimensional alkaline earth metal chlorides are a kind of nanomaterials with excellent mechanical and magnetic properties, and have broad application prospects in spintronic devices and flexible electronic devices.

参考文献

[1] NOVOSELOV K S, GEIM A K, MOROZOV S V, et al. Electric field effect in atomically thin carbon films[J]. Science, 2004, 306(5696): 666-669. DOI: 10.1126/science.1102896.
[2] ZAVABETI A, AUKARASEREENONT P, TUOHEY H, et al. High-mobility p-type semiconducting two-dimensional β-TeO2[J]. Nat Electron, 2021, 4: 277-283. DOI: 10.1038/s41928-021-00606-9.
[3] GUO S H, ZHANG Y Y, TANG S W, et al. Tuning interlayer spacing of MoS2 for enhanced hydrogen evolution reaction[J]. J Alloys Compd, 2021, 864: 158581. DOI: 10.1016/j.jallcom.2020.158581.
[4] WANG B, IOCOZZIA J, ZHANG M, et al. The charge carrier dynamics, efficiency and stability of two-dimensional material-based perovskite solar cells[J]. Chem Soc Rev, 2019, 48(18): 4854-4891. DOI: 10.1039/c9cs00254e.
[5] LIU B W, ZHANG Z, LIAO K, et al. Tuning optical properties of monolayer MoS2 through the 0D/2D interfacial effect with C60 nanoparticles[J]. Appl Surf Sci, 2020, 523: 146371. DOI: 10.1016/j.apsusc.2020.146371.
[6] SATAWARA A M, SHAIKH G A, GUPTA S K, et al. An ab-initio analysis of the hydrogen storage behaviour of V doped Si2BN nanotube[J]. Int J Hydrog Energy, 2024, 52: 1560-1567. DOI: 10.1016/j.ijhydene.2023.10.166.
[7] FENG P J, ZHANG S, LIU D P, et al. Achieving high-temperature ferromagnetism by means of magnetic ion dimerization in the graphene-like Mn2N6C6 monolayer[J]. J Phys Chem C, 2022, 126(24): 10139-10144. DOI: 10.1021/acs.jpcc.2c02593.
[8] CHINNADURAI K, NATESAN B. Influence of main-group elements on structural, electronic, magnetic and half-metallic properties of DO3- type Mn3Z(Z=Al, Ga, In, Si, Ge, Sn, P, As and Sb)alloys-A DFT study[J]. Comput Condens Matter, 2024, 38: e00871. DOI: 10.1016/j.cocom.2023.e00871.
[9] DEHGHAN A, DAVATOLHAGH S. First principles study of d0-d half-Heusler alloys containing group-IV, -V, and-VI sp atoms as prospective half-metals for real spintronic applications[J]. Mater Chem Phys, 2021, 273: 125064. DOI: 10.1016/j.matchemphys.2021.125064.
[10] USMAN M, REHMAN J U, TAHIR M B. Screening of ABF3 fluoroperovskites by using first-principles calculations[J]. Solid State Commun, 2023, 369: 115198. DOI: 10.1016/j.ssc.2023.115198.
[11] GAO B, ZHANG L. MX6C2H monolayers: the novel two-dimensional tunable Dirac cone materials family and quantum spin Hall insulators[J]. Solid State Commun, 2023, 372: 115314. DOI: 10.1016/j.ssc.2023.115314.
[12] GUAN Y L, HAAS S, SCHLOMER H, et al. Plasmons in Z2 topological insulators[[J]. Phys Rev B, 2023, 107(15): 5414. DOI: 10.1103/PhysRevB.107.155414.
[13] KRESSE G, FURTHMÜLLER J. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set[J]. Phys Rev B Condens Matter, 1996, 54(16): 11169-11186. DOI: 10.1103/physrevb.54.11169.
[14] PERDEW J P, BURKE K, ERNZERHOF M. Generalized gradient approximation made simple[J]. Phys Rev Lett, 1996, 77(18): 3865-3868. DOI: 10.1103/PhysRevLett.77.3865.
[15] BLÖCHL P E. Projector augmented-wave method[J]. Phys Rev B Condens Matter, 1994, 50(24): 17953-17979. DOI: 10.1103/physrevb.50.17953.
[16] MONKHORST H J, PACK J D. Special points for Brillouin-zone integrations[J]. Phys Rev B, 1976, 13(12): 5188-5192. DOI: 10.1103/physrevb.13.5188.
[17] HADJI S, BOUHEMADOU A, HADDADI K, et al. Elastic, electronic, optical and thermodynamic properties of Ba3Ca2Si2N6 semiconductor: first-principles predictions[J]. Phys B Condens Matter, 2020, 589: 412213. DOI: 10.1016/j.physb.2020.412213.
[18] SINGH S, LANG L, DOVALE-FARELO V, et al. MechElastic: a Python library for analysis of mechanical and elastic properties of bulk and 2D materials[J]. Comput Phys Commun, 2021, 267: 108068. DOI: 10.1016/j.cpc.2021.108068.
[19] VILLALOBOS-PORTILLO E E, FUENTES-MONTERO L, MONTERO-CABRERA M E, et al. Polycrystal piezoelectricity: revisiting the Voigt-Reuss-Hill approximation[J]. Mater Res Express, 2019, 6(11): 115705. DOI: 10.1088/2053-1591/ab46f2.
[20] ZHAO Y H, DENG S J, LIU H, et al. First-principle investigation of pressure and temperature influence on structural, mechanical and thermodynamic properties of Ti3AC2(A=Al and Si)[J]. Comput Mater Sci, 2018, 154: 365-370. DOI: 10.1016/j.commatsci.2018.07.007.
[21] QI W, CHEN B, YANG X, et al. Phase stability, mechanical and thermodynamic properties of(Hf, Zr, Ta, M)B2(M=Nb, Ti, Cr, W)quaternary high-entropy diboride ceramics via first-principles calculations[J]. Ceram Int, 2023, 49(20): 33255-33264. DOI: 10.1016/j.ceramint.2023.08.034.
[22] SHAO L, JIANG H H, XU C R, et al. Prediction of lattice distortion and mechanical behavior of tetragonal phase(Bi0.2Na0.2Ba0.2Sr0.2Ca0.2)TiO3 high-entropy perovskite with A-site disorder from first-principles calculations[J]. J Alloys Compd, 2023, 954: 170205. DOI: 10.1016/j.jallcom.2023.170205.
[23] GONG J J, LI Y, SONG X Q, et al. Hydrogen storage of high entropy alloy NbTiVZr and its effect on mechanical properties: a first-principles study[J]. Vacuum, 2024, 219: 112754. DOI: 10.1016/j.vacuum.2023.112754.
[24] KHOEI A R, KIANEZHAD M. A machine learning-based atomistic-continuum multiscale technique for modeling the mechanical behavior of Ni3Al[J]. Int J Mech Sci, 2023, 239: 107858. DOI: 10.1016/j.ijmecsci.2022.107858.
[25] ZHANG P X, YE L, CHEN F H, et al. Stability, mechanical, and thermodynamic behaviors of(TiZrHfTaM)C(M=Nb, Mo, W, V, Cr)high-entropy carbide ceramics[J]. J Alloys Compd, 2022, 903: 163868. DOI: 10.1016/j.jallcom.2022.163868. (
文章导航

/

〈 〉