Materials Data on MnGaNi2 by Materials Project

Abstract

Ni2MnGa is Heusler structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Mn is bonded to eight equivalent Ni and four equivalent Ga atoms to form MnGa4Ni8 cuboctahedra that share corners with four equivalent MnGa4Ni8 cuboctahedra, corners with eight equivalent GaMn4Ni8 cuboctahedra, edges with eight equivalent MnGa4Ni8 cuboctahedra, faces with four equivalent MnGa4Ni8 cuboctahedra, and faces with six equivalent GaMn4Ni8 cuboctahedra. All Mn–Ni bond lengths are 2.53 Å. All Mn–Ga bond lengths are 2.71 Å. Ni is bonded in a distorted body-centered cubic geometry to four equivalent Mn and four equivalent Ga atoms. All Ni–Ga bond lengths are 2.53 Å. Ga is bonded to four equivalent Mn and eight equivalent Ni atoms to form GaMn4Ni8 cuboctahedra that share corners with four equivalent GaMn4Ni8 cuboctahedra, corners with eight equivalent MnGa4Ni8 cuboctahedra, edges with eight equivalent GaMn4Ni8 cuboctahedra, faces with four equivalent GaMn4Ni8 cuboctahedra, and faces with six equivalent MnGa4Ni8 cuboctahedra.