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Updated: Apr 13, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Pressure dependence of Raman spectrum in InAs nanowires
Abstract:
We report on a Raman scattering experiment under high pressure on InAs nanowires with mainly wurtzite crystal structure. The dependence of the phonon modes on applied pressure due to the modification of the lattice parameters has been determined along with the transverse dynamical charge. Contrary to bulk InAs, no structural transition to rock salt phase has been observed in the investigated pressure range, while an anomalous behavior of the full-width at half-maximum has been noted. Our data suggest that wurtzite InAs NWs go through a tetragonal intermediate phase. Furthermore, the resonance profile of the phonon modes as a function of the applied pressure has been investigated, giving insights into the band structure of wurtzite InAs.
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