期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.105701
关键词
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资金
- Australian Research Council (ARC) [FT130101355]
- Laboratory Directed Research and Development Program of Oak Ridge National Laboratory
- MINECO (Spain) [MAT2016-75586-C4-3-P]
- DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357]
- Australian Research Council [FT130101355] Funding Source: Australian Research Council
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 similar to 4 GPa that stabilizes the r8 phase.
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