New Type of A5B3 Structure in Al–Ti and Ga–Ti Systems; Al5Ti3 and Ga5Ti3
- 1 January 1982
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 21 (1A), L59-61
- https://doi.org/10.1143/jjap.21.l59
Abstract
By electron diffraction and X-ray powder diffraction, a new type of A5B3-structure based on the L10-type was found in the Al–Ti and Ga–Ti systems; Al5Ti3 and Ga5Ti3. The structure has a tetragonal symmetry with the space group, P4/m b m, and the lattice constants, 2√2a f and c f, where a f and c f are those of the fundamental L10-type cell. 20 Al (or Ga) and 12 Ti atoms are contained in the unit cell. The structure can be described as follows: it consists of the domains based on the L12, containing 3×2 columns of Ti atoms, and the domain boundaries have the L10-type atomic arrangement.Keywords
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