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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on TbMnSi by Materials Project

TbMnSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Tb is bonded in a 5-coordinate geometry to six equivalent Mn and five equivalent Si atoms. There are a spread of Tb–Mn bond distances ranging from 2.98–3.38 Å. There are a spread of Tb–Si bond distances ranging from 2.96–2.99 Å. Mn is bonded in a 4-coordinate geometry to six equivalent Tb and four equivalent Si atoms. There are three shorter (2.47 Å) and one longer (2.75 Å) Mn–Si bond lengths. Si is bonded in a 9-coordinate geometry to five equivalent Tb and four equivalent Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbMnSi by Materials Project

TbMnSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Tb is bonded in a 4-coordinate geometry to four equivalent Mn and five equivalent Si atoms. All Tb–Mn bond lengths are 3.08 Å. There are four shorter (2.93 Å) and one longer (3.38 Å) Tb–Si bond lengths. Mn is bonded to four equivalent Tb and four equivalent Si atoms to form a mixture of distorted edge and face-sharing MnTb4Si4 tetrahedra. All Mn–Si bond lengths are 2.43 Å. Si is bonded in a 9-coordinate geometry to five equivalent Tb and four equivalent Mn atoms.

36 MATERIALS SCIENCE↗