The mechanical and anisotropy properties of ?-RuCl3 compound

The recent study showed that the low-temperature crystal structure is described by space group C2/m with lattice parameters a=5.981 Å, b=10.354 Å, c=6.014 Å, and ?=108.800. Also, the recent theoretical paper described spin ordered states where FM is ground. In this study, we have studied the structural, mechanical, and directional dependency of mechanical properties of the ?-RuCl3 in monoclinic C2/m structure. The elastic constants of these compounds are calculated, then bulk modulus, shear modulus, Young’s modulus, Possion’s ratio, Debye temperature, and anisotropy value of polycrystalline aggregates have been derived and relevant mechanical properties are discussed. Furthermore, the directional dependence of the polycrystalline elastic modulus and Poisson's ratio are analyzed from calculated single-crystal elastic constants.