中国物理B ›› 2019, Vol. 28 ›› Issue (2): 26201-026201.doi: 10.1088/1674-1056/28/2/026201

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Orientation dependence of elastic properties in orthorhombic Ca3Mn2O7

Gang Jian(简刚), Mei-Rui Liu(刘美瑞), Chen Zhang(张晨), Jie Lu(卢杰), Chao Yan(晏超)   

  1. 1 School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta 30332, USA
  • 收稿日期:2018-10-01 修回日期:2018-12-11 出版日期:2019-02-05 发布日期:2019-02-05
  • 通讯作者: Gang Jian, Chao Yan E-mail:gjian@just.edu.cn;chaoyan@just.edu.cn

Orientation dependence of elastic properties in orthorhombic Ca3Mn2O7

Gang Jian(简刚)1,2, Mei-Rui Liu(刘美瑞)1, Chen Zhang(张晨)1, Jie Lu(卢杰)1, Chao Yan(晏超)1   

  1. 1 School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta 30332, USA
  • Received:2018-10-01 Revised:2018-12-11 Online:2019-02-05 Published:2019-02-05
  • Contact: Gang Jian, Chao Yan E-mail:gjian@just.edu.cn;chaoyan@just.edu.cn

摘要: Elastic properties are important in fundamental understanding of multiferroic materials. However, up to now, there is no work about anisotropy of elastic properties in orthorhombic Ca3Mn2O7. In this study, using coordinate transformation method, we investigated basic elastic parameters (elastic constants c'ij) and engineering elastic parameters (Young's modulus E', Poisson's ratio v', and the rigidity modulus G') of orthorhombic Ca3Mn2O7 along arbitrary orientations. The detailed anisotropic characteristics of these parameters were presented. The results reveal the orientation related elastic properties in mm2 point group orthorhombic Ca3Mn2O7.

关键词: Ca3Mn2O7, elastic properties, coordinate transformations, orientation dependence

Abstract: Elastic properties are important in fundamental understanding of multiferroic materials. However, up to now, there is no work about anisotropy of elastic properties in orthorhombic Ca3Mn2O7. In this study, using coordinate transformation method, we investigated basic elastic parameters (elastic constants c'ij) and engineering elastic parameters (Young's modulus E', Poisson's ratio v', and the rigidity modulus G') of orthorhombic Ca3Mn2O7 along arbitrary orientations. The detailed anisotropic characteristics of these parameters were presented. The results reveal the orientation related elastic properties in mm2 point group orthorhombic Ca3Mn2O7.

Key words: Ca3Mn2O7, elastic properties, coordinate transformations, orientation dependence

中图分类号:  (Elastic moduli)

  • 62.20.de
64.30.Jk (Equations of state of nonmetals) 71.15.Mb (Density functional theory, local density approximation, gradient and other corrections) 71.27.+a (Strongly correlated electron systems; heavy fermions)