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Description:

Although β-Ga2O3 crystallizes in the monoclinic system, its structural complexity can be
simplified by focusing on the oxygen framework. The oxygen sublattice forms a cubic close-
packed arrangement, corresponding to a distorted face-centered cubic (fcc) structure defined
by lattice vectors: afcc = b + 1/2 c, bfcc = − b + 1/2 c, cfcc = 1/3 a + 1/6 c, giving lattice
parameters of afcc = bfcc = 4.20 Å, cfcc = 3.95 Å, αfcc = βfcc = 90.1°, γfcc = 92.7°. This pseudo-
cubic representation provides a straightforward understanding of the crystal shape, thereby
facilitating systematic exploration of its crystal orientations.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: Ga2O3, fcc

Date published: 2026-02-16

Publisher: IOP Publishing

Journal:

• Japanese Journal of Applied Physics (ISSN: 00214922) vol. 65 issue. 3 038003

Funding:

• Japan Society for the Promotion of Science JP24K01368

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.35848/1347-4065/ae42ac

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Updated at: 2026-02-18 16:30:08 +0900

Published on MDR: 2026-02-18 12:58:33 +0900