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Formation of an r8-Dominant Si Material

Wong, Sherman; Haberl, Bianca; Johnson, Brett; Mujica Fernaud, Andres; Guthrie, M.; McCallum, Jeffrey C.; Williams, James; Bradby, Jodie

Description

The rhombohedral phase of Si (r8-Si), a promising semiconducting material, is formed by indentation together with the body-centered cubic phase (bc8-Si). Using a novel sample preparation method, x-ray diffraction is used to determine the relative volume of these phases in indented Si and allow observation of a distorted unit cell along the direction of indentation loading. Theoretical calculations together with these observations suggest the indent contains an intrinsic compression of ∼4  GPa...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/201512
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.122.105701
Access Rights: Open Access

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