Deformation behaviors of InP pillars under uniaxial compression

Sheng Rui Jian*, T. H. Sung, J. C. Huang, Jenh-Yih Juang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


We report the deformation behavior of single-crystal InP(100) micropillars, measuring about 1 μm in diameter and 2 μm in height, subjected to uniaxial compression at room temperature. The engineering stress-strain results indicated that the yield strength of InP pillar is about 2.5 GPa, and the presence of a drastic strain burst right after yielding. Cross-sectional transmission electron microscopy microstructural observations reveal the formation of extremely dense twins. The results indicate that the plastic deformation in InP micropillars is dominated by explosive generation of deformation twins under the high stress state.

Original languageEnglish
Article number151905
JournalApplied Physics Letters
Issue number15
StatePublished - 8 Oct 2012

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